Answer:
she will need to work for 55 hours to buy the phone
Step-by-step explanation:
680 - 240 = 440
that's how much more she needs
449 ÷ 8 = 55
and that's the answer
55
hope that helped
Answer:
55 hours
Step-by-step explanation:
Well first we need to set up the equation
We know she needs 680$ to buy the phone so the equation must be equal to 240
She has 240 and earns 8 dollars per hr so were finding out how many hours of work is needed to be able to buy the phone
Represent the number of hours worked by "x"
Set the equation up as
240 + 8x = 680
Add -240 to both sides of the equation to make 240 be 0 and 680 be 440
8x = 440
divide both sides of equation by 8 to get what x equals
x=55
She needs to work 55 hours
Please help ASAP!!!
By what percent will a fraction decrease if its numerator is decreased by 50% and its denominator is decreased by 25%?
Answer:
it will decrease by 60% I think
Step-by-step explanation:
Lets use the example 100/100 and do the thing you get 50/125=40%.
Answer:
[tex]33\frac{1}{3}[/tex]%
Step-by-step explanation:
We can use a random fraction with numbers that make this problem easier to calculate. We can start with the fraction [tex]\frac{1}{1}[/tex] (1). If its numerator is decreased by 50% and its denominator is decreased by 25%(75% of it), the new fraction will be [tex]\frac{0.5}{0.75}[/tex] , which is the same as 2/3
The percent decrease from 1 to 2/3 is 33.333....% or [tex]33\frac{1}{3}[/tex]%.
You can use variables to solve this problem, but I find it easier to start with the fraction [tex]\frac{1}{1}[/tex] for calculation purposes.
Which value is equivalent to
3/11?
OA A. 0.27
O
B. 0.27
OC
C. 3.6
OD. 3.
Answer:
0.27 repeating.
Step-by-step explanation:
So to solve this we just have to use division.
1 clearly doesnt go into 3 at least one time, so we can add a decimal point and add a 0 to make it 30.
11 goes into 30 2 times, so we have:
0.2
and 30-22=8
So we can add another 0 and make it 80.
Then 11 goes into 80 7 times. So we have:
0.27
and 80-77=3
So again, add the 0, we have 30.
11 goes into 30 2 times, so:
0.272
and 30-22=8
Add another 0 we get 80.
11 goes into 80 7 times.
So finally, we have:
0.2727.
This is a repeating decimal.
This can be shown as:
0.27
So this is your answer!
I was a bit confused with which one it was on your answer key, but knowing that it is 0.27 I am guessing you can chose!
Hope this helps!
Solve the equation. How old is Sam?
Sam's age doubled plus 5 is the same as Sam's age tripled minus 1.
Answer:
Step-by-step explanation:
let the sam's age be x
2x+5=3x-1
5+1=3x-2x
6=x
therefore sam's age is 6.
Answer:
6
Step-by-step explanation:
let age be = to x
2x + 5 = 3x - 1
-x = -6
x = 6
4+2(17-12) !!!!!!!!!!!!!!!!!!
Answer:
14
Step-by-step explanation:
Use Pemdas
Solve in parentheses:
17 - 12 = 5
Multiplication:
2 * 5 = 10
Addition:
10 + 4 = 14
Answer is 14
Answer: 14
Steps:
[tex]Follow\:the\:PEMDAS\:order\:of\:operations[/tex]
Calculate within parentheses (17 − 12 ) : 5
[tex]=4+2\cdot \:5[/tex]
Multiply and divide (left to right) 2 · 5 : 10
[tex]=4+10[/tex]
Add and subtract (left to right) 4 + 10 : 14
=14
#[tex]AnimePower[/tex]
Sixty five students picked up trash on clean up day. Each student filled 5 bags of trash. Which equation could be used to find the total number of trash bags filled
Answer:
65 x 5 = 325
Step-by-step explanation:
A cell phone company offers two texting plans to its customers. The monthly cost, y dollars, of plan A is
y =0.16x +9, where x is the number of texts. The cost of plan B is shown in the table. Drag and drop the
correct option into the box to make the statement true.
Answer: plan B is cheaper
Step-by-step explanation:
Find the missing hypotenuse
Answer:
13
Step-by-step explanation:
[tex]a^{2} +b^{2} =c^{2} \\12^{2} +5^{2} =c^{2} \\13 = c[/tex]
Answer:
13
Step-by-step explanation:
5 raised 2 = 25
12 raised to 2 = 144
144 + 25 = 169
Square root of 169 = 13
Therefore the hypotenuse is 13 :)
please someone help me with this
Answer:
260 cm³Step-by-step explanation:
Full surface area:
S = 3(6*10) + 2(1/2*8*10) = 260 cm³Answer:
Surface Area = Surface Area of triangle + SA of rectangle
Surface Area = 3 × (6 × 10) + 2 × ½ × 8 × 10
Surface Area = 3 × 60 + 80
Surface Area = 180 + 80
Surface Area = 260 cm ³
[tex] \\ [/tex]
How would this look in standard notation??
PLEASE I NEED HELP I DONT UNDERSTAND HOW TO DO ILL GIVW MORE IF RIGHT
From what I can tell from this problem, 130° and y° look to be both on the same 180° horizontal line. To find what y is, you just gotta subtract 130 from 180 and you get 50°. So y° is really, 50°.
Now for the x°. Even though we don't know what the numbers add up to in this diagram, let's assume since all triangles add up to 180° (and quadrilaterals are comprised of two triangles), that all angles of this quadrilateral are supposed to equal 360°. All you have to do is add the 123°, 60°, and 50° together to get 233°, now just subtract 233° from 360°, and your answer is 127°.
By the way my math might be a little off but I hope this helps you understand it. I hope.
A class of 35 students has 15 honor students and 10 athletes. Five of the honor
students are also athletes. One student is chosen at random. Find the probability that this student is an athlete if it is known that the student is not an honor student.
(Round to the nearest thousandth.)
Answer:
5/35 both or 14.285%
Step-by-step explanation:
15/35 honor students
10/35 athletes
5/35 both or 14.285%
I could be wrong.
Please help me! i have to find the cube root
Answer: 7/4
Step-by-step explanation:
Answer:
Exact Form:
7/4
Decimal Form:
1.75
Mixed Number Form:
1 3/4
Step-by-step explanation:
In Circle P, EP = 2, PG = 12, and FP = 4.
What is the measure of PH?
A) 10
B) 16
C) 6
D) 8
Answer:
6
Step-by-step explanation:
FP * PH = GP * EP
If EP = 2, PG = 12, and FP = 4.
Then 4 * PH = 12 * 2
4 * PH = 12 * 2
step 1 simplify
4 * ph = 4PH
12 * 2 = 24
we now have 4PH = 24
step 2 divide each side by 4
4PH / 4 = PH
24 / 4 = 6
we're left with PH = 6
The centre circle has a diameter of 3 cm and the difference in the radii of each larger circle is 4 cm. What is the circumference of the yellow circle? Use π=3.14
Circumference = 2×π× radius
Circumference = 2 × 3.14 × 3
Circumference = 18.84
Solution for the radius of a circle of radius 3 . I'm sorry if I made a mistake, I am not sure of the solution.
But is there a fee for the question?
These two laws can help you in the question:
Circumference = π× diameter of the circle. Circumference = 2×π× radius
The circumference of the yellow circle should be considered as the 18.84.
Calculation of the circumference of the yellow circle:Since
The centre circle has a diameter of 3 cm and the difference in the radii of each larger circle is 4 cm
So here the circumference be like
= 2×π× radius
= 2 × 3.14 × 3
= 18.84
hence, The circumference of the yellow circle should be considered as the 18.84.
Learn more about circle here: https://brainly.com/question/2031248
Find the common difference for an arithmetic series with
a1=5 and S10 = 320.
Answer:
6
Step-by-step explanation:
Let [tex]n = a_{10}[/tex]. We know the formula for the sum of an arithmetic sequence is:
[tex]S_{n} = \frac{n(a_{1}+a_{n} )}{2}[/tex]
Where n is the number term you are finding the sum up to, a1 is the first term, and an is the nth term. We can substitute what we have:
[tex]320=\frac{10(5 + n)}{2}[/tex]
[tex]640=10(n+5)\\64=n+5\\n=59[/tex]
The formula to find the nth term of an arithmetic series is:
[tex]a_{n} = a_{1} + (n-1)d[/tex]
Where d is the common difference. Again, we can plug in what we have;
[tex]59 = 5 + 9d\\9d = 54\\d = 6[/tex]
If −12 − 2x = −42, then 3x = _____?
Answer:
-2x =-42+12
-2x =-30
x =15
3x=15×3
=45
Select the best name for this figure.
D
AC = BD
B
A. Rectangle
B. Rhombus
C. Square
Answer:
A
I hope this will help you.
Need help plz
I will mark brainlist
Express all trigonometry metrics ratio In term tan a
Answer:
sinθ=cscθ1 =csc2θ 1 =1+cot2θ 1 =1+tan2θ1 1 =tan2θ1+tan2θ 1 =1+tan2θ tanθ
cosθ=secθ1 =sec2θ 1 =1+tan2θ 1
cotθ=tanθ1
cscθ=csc2θ =1+cot2θ =1+tan2θ1 =tan2θtan2θ+1 =tanθ1+tan2θ
secθ=sec2θ
Is this a right triangle?
Answer:
yes
Step-by-step explanation:
it has a 90 degree angle
PLEASE ANSWER!!! DUE TOMORROW!!
the top one is the answer
In circle 0 points P, Q, and R lie on the circle. Which of the following would not be a chord
of the circle?
OP
QP
RP
QR
Answer:
OP
Step-by-step explanation:
A chord is a segment whose extremes lie on the circumference
OP is a radius because has an extreme that is the center of the circumference and a radius is not a chord
You spin the spinner, flip a coin, then spin the spinner again. Find the probability of spinning an odd number, flipping heads, then spinning another even number.
Answer:
spinng of an odd number -50%
fliping heads - 50%
spinin an even number- 50%
Step-by-step explanation:
Help quick please !!!!!!!
Answer: y=3x
Step-by-step explanation:
Remember rise over run so go up until the next perfect cross and over. In this case you go up 3 and over 1
Hope this helps
Why might you use the commutative property to multiply (-4) × 5?
Answer:
answer will be same -20
Step-by-step explanation:
because (-4)×5 is same as 5×(-4)
Someone please help :0
Answer:
m < -18/19
Step-by-step explanation:
8m + 95 < -87 m +5
Add 87m to each side
8m+87m + 95 < -87 m+87m +5
95m + 95 < 5
Subtract 95 from each side
95m + 95-95 < 5-95
95m < -90
Divide each side by 95
95m/95 < -90/95
m < -18/19
Answer:
Step-by-step explanation:
8m +95 < -87m +5
8m +87m < 5-95
95m < -90
m < -90/95
m < -18/ 19
Jake draws A POR on the coordinate plane
A. 20.13 units
B. 19.42 unit
C. 18.71units
D. 18 units
Determine the missing side length of the triangle please and thank you!
Answer:
90
Step-by-step explanation:
It is a right angle
Answer:
8.944
Step-by-step explanation:
Use the Pythagorean theorem to find the unknown side.
[tex]a^{2} +b^{2} =c^{2} \\x^{2} +8^{2} =12^{2} \\x^{2} = 12^{2} -8^{2}\\x=8.944[/tex]
PLEASE HELP WITH GEOMETRY!!
Answer:
x = 14.1
Step-by-step explanation:
sin (40) = x/22
x = 22 (sin(40))
x = 14.1
can somebody help me pleaseeee, this is due at the end of the day! no links please!
Answer:
You can tell that y=2 when x=4 by looking at the graph
Answer:
y = 2
Step-by-step explanation:
The equation is y = -x+6
Substituting 'x = 4' into this
y = -4+6
Hence, y = 2 when x =4
Feel free to mark this as brainliest :D
Find the area. Round any decimals to the nearest tenth
Answer:
1.4
Step-by-step explanation:
Since we're finding the area, we need to multiply 1.2 times 1.2, which would give us 1.44, and since it says to round to the nearest tenth, we need to round it. If the number is 4 or under, we round down, if it's 5 and up we round up. In this case, we round down- so we end up with 1.4.
Answer:
A = L x 4
1.2cm x 4 = 4.8 cm^3
.................