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3 years ago

What is the first step to solving for x in the equation 9x-7=10? how would you check your solution

Mathematics

1 answer:

mihalych1998 [28]3 years ago

7 0

Answer:

<h2>In this equation the first step will be to add 7 on the right hand side to isolate the variable term on the one side of the equation. Therefore,</h2>

<h2>Step 2 will be dividing both sides of the equation by 9.</h2>

<h2>.•. we got the value of x!</h2>

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What should be added to -7/9 to get 5?

liraira [26]

Let the number that wll be added be x, then
-7/9 + x = 5
x = 5 + 7/9 = 5 7/9 or 52/9

8 0

3 years ago

CA Geometry A Illuminate Credit 4 FF.pdf all 4 pls

lions [1.4K]

Answer:

1) HL=LJ=63

(ZJ)²=16²+63²

(ZJ)²=256+3969

ZJ=√4425

ZJ= 65

2)HJ=HL+LJ

= 63+63

HJ=126

3) XC=XA=8

4) BE=AB/2=20/2=10

OAmalOHopeO

6 0

3 years ago

Sharon read a 300-page book. She read a rate of 15 pages per day in d day.

s344n2d4d5 [400]

Answer:

d=300/15

d=20 btw

hope this helps :))

5 0

3 years ago

The temperature at 6 pm was 0f. At 10 pm the temperature was -11.2f. Write an expression that you can use to find the average ch

Mariana [72]

Answer:

Average change in temperature is - 2.8 Fahrenheit per hour.

Step-by-step explanation:

Average change in temperature is the change in temperature divided by the time taken for the change.

Change in temperature = (-11.2) F- 0 F

= -11.2 F

Time taken for the change in temperature = 10 pm - 6 pm

= 4 hours

Average change in temperature = Change in temperature / time taken for the change

= $\frac{-11.2}{4}$

= - 2.8 Fahrenheit per hour

3 0

3 years ago

What is the multiplicative rate of change of the function shown on the graph? Express your answer in decimal form. Round to the

allsm [11]

In linear models there is a constant additve rate of change. For example, in the equation y = mx + b, m is the constanta additivie rate of change.

In exponential models there is a constant multiplicative rate of change.

The function of the graph seems of the exponential type, so we can expect a constant multiplicative exponential rate.

We can test that using several pair of points.

The multiplicative rate of change is calcualted in this way:

[f(a) / f(b) ] / (a - b)

Use the points given in the graph: (2, 12.5) , (1, 5) , (0, 2) , (-1, 0.8)

[12.5 / 5] / (2 - 1) = 2.5

[5 / 2] / (1 - 0) = 2.5

[2 / 0.8] / (0 - (-1) ) = 2.5

Then, do doubt, the answer is 2.5

6 0

3 years ago

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