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laila [671]
3 years ago
9

Kayla is saving $10 each week for a college fund. On her birthday, her aunt gave her $45 to add to the fund. If she has a total

of $255 in the fund, determine how many weeks she has been saving.
Mathematics
2 answers:
Maurinko [17]3 years ago
8 0
255-45-10=200

1 week

200/10=20

20 weeks plus one week equals 21 weeks

Thank you have a day!
mash [69]3 years ago
6 0
Shes been saving for 21 weeks
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Pre image ABCD was dilated to produce image A’B’C’D why is the scale factor from the pre image? Enter your answer in the box as
shepuryov [24]

The scale factor of the dilation from ABCD to A′B′C′D′ is 3.

Step-by-step explanation:

Step 1:

In the pre-image ABCD, the length of one of the sides is given as 14 units.

For the other shape A′B′C′D′, the same side as the previous shape is given as 8 units.

Step 2:

To determine the scale factor, we divide the measurement after scaling by the same measurement before scaling.

In this case, it is the given length of the sides CD and C′D′.

So the scale factor = \frac{C^{1} D^{1} }{CD} = \frac{8}{14} = \frac{4}{7} .

So the shape ABCD is dilated by a scale factor of \frac{4}{7} to produce the shape A′B′C′D′.

7 0
3 years ago
Miss violet is buying granola bars for her students. she already has 16 granola bars in her desk and needs a total of 100 bars.
JulijaS [17]
Well, 100 - 16 = 84, and 84 divided by 12 is 7. She needs to buy 7 more boxes of granola bars for her students.
7 0
3 years ago
76 % of 150 calculate this
IrinaVladis [17]
76% of 150 would be 114 I think I’m not to sure tho
4 0
3 years ago
X + 2y = 5<br>3x + 5y = 14<br>Solve the system of equations.<br>(3.1)<br>(7.-1)<br>(2.3/2)​
son4ous [18]

Answer:

(3,1) because x is 3 and y is 1.

Step-by-step explanation:

x+2y=5

3x+5y=14

Multiply first equation by 3:

3x+6y=15

3x+5y=14

Subtract 3x:

1y=1

Therefore, y = 1

Plug it back into 1st equation:

x+2(1)=5

x+2=5

Therefore, x = 3

Judging from your answers, it looks like (3,1) because x is 3 and y is 1.

I hope this helped!

5 0
3 years ago
28 is 32% of what number?
ehidna [41]
<span>28 is 32% of 87.5.
</span><span>0.32x = 28
x = 28/0.32
x = 87.5

</span>
4 0
3 years ago
Read 2 more answers
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