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Natali [406]
3 years ago
7

Given f(x) = 8x-15, find x when f(x) =9

Mathematics
1 answer:
lawyer [7]3 years ago
3 0

Answer:

72-15 = 57

Step-by-step explanation:

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The original price of an item is 120 but there is a sale for 80
Bad White [126]

Answer:

33.3%

Step-by-step explanation:

It was a sale for 33.3% off.

80=66.6% of 120

the last third, which is 40, equals 33.3% of 120

40 is 1/3 of 120

1/3=33.3%

8 0
3 years ago
What is the slope in slope-intercept form for these graphs?
Irina-Kira [14]

Answer:

Step-by-step explanation:

for this graph  find rise over run ,  and where the line crosses they y axis.. sooo ..

it crosses at -2 and  the slope is rise over run  or y/x and I can see by the graph that the line goes up 1 when it goes over 1... so the slope is +1

sooo...

use the slope intercept form   y = mx + b

y = 1x + (-2)

y = x - 2   :)

5 0
3 years ago
Determine whether the ratios are equivalent.<br><br> 3 : 10 and 9 : 25<br><br> Please Help!!
Ilia_Sergeevich [38]

Answer:

They aren't

Step-by-step explanation:

9/25 / 3= 3/8.3

3/10 x 3 = 9/30

none of those equal to each other

7 0
3 years ago
Which of the following is the midpoint between (6, 3) and (-2, -5)
Yakvenalex [24]

Answer:

( 2, -1)

Step-by-step explanation:

(X1 + X2)/2 , (Y1 + Y2)/2

(6-2)/2 , (3-5)/2

4/2 , -2/2

2 , -1

3 0
2 years ago
Read 2 more answers
Mona needs to photocopy a 10.5 centimeters wide by 16 centimeters long picture. She wants to enlarge the picture so that its len
Inga [223]

Original Picture:

Width: 15 cm

Length: 16 cm

Enlarged Picture:

Width: unknown

Length: 48 cm

The new length is 48 cm, and the original length is 16 cm.

How many times larger is the new length than the old length?

We divide 48 by 16 to get 48/16 = 3

The new length is 3 times larger than the original length.

This means that the new width will also be 3 times the original width.

Original width: 15 cm

New width: 3 * 15 cm = 45 cm

Answer: 45 cm

Hope It would Help you

6 0
3 years ago
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