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3 years ago

Solve each equation. 9) -8(m – 4) – 7 = 89

Mathematics

1 answer:

ycow [4]3 years ago

5 0

Answer:

Step-by-step explanation:

Given that,

-8(m – 4) – 7 = 89

We need to expand the bracket first

Also, note

-×-=+. -×+=- -÷+=- -÷-=+

Then,

-8(m – 4) – 7 = 89

(-8×m) (- 8×-4) - 7=89

-8m+32-7=89

-8m+25=89

Subtract 25 from both sides

-8m+25-25=89-25

-8m=64

Divide both sides by -8

-8m/-8=64/-8

m=-8

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Please help thank you.

klasskru [66]

Use the Pythagorean Theorem.
4000^2 + 17000^2 = c^2
16000000 + 289000000 = c^2
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c = 17464 miles (B)

3 0

4 years ago

Help me pls ❤️❤️❤️ ty to the person who decides to help ❤️

stellarik [79]

Answer:

8/5

Step-by-step explanation:

this is a slope formula which formats y=mx+b

m being the slope

and b being the y-intercept

so no need to look far, and no need to solve anything but 8/5 would be your y-intercept

:)) have a great day!

6 0

3 years ago

GIVING A BRAINLIST PLZZ ASAP

Jobisdone [24]

Answer:

(b) Mr. Sánchez's class earned more money.

(a) $\displaystyle [42, 37] → [j, p]$

Step-by-step explanation:

{79 = p + j

{118,17 = 1,65p + 1,36j

−25⁄34[118,17 = 1,65p + 1,36j]

{79 = p + j

{−86 121⁄136 = −1 29⁄136p - j >> New Equation

__________________________

$\displaystyle \frac{-7\frac{121}{136}}{-\frac{29}{136}} = \frac{-\frac{29}{136}p}{-\frac{29}{136}}$

$\displaystyle 37 = p$ [Plug this back into both equations above to get the j-value of 42]; $\displaystyle 42 = j$

The next step is to plug the solution into the BOTTOM EQUATION to calculate the total money earned for each class:

Sánchez's class

$\displaystyle 61,05 = [37][1,65]$

Altogether, thirty-seven fruit pies cost $61,05.

Kelly's class

$\displaystyle 57,12 = [42][1,36]$

Altogether, forty-two bottles of fruit juice cost $57,12.

* Based on the calculation, it is perfectly clear that Mr. Sánchez's class earned more money by $3,93:

$\displaystyle 3,93 = -57,12 + 61,05$

I am delighted to assist you anytime my friend!

6 0

3 years ago

A 450m long field is drawn to a scale 1cm to 90cm.find the lenth of drawing

irina1246 [14]

Answer:

500cm or 5 meters

Step-by-step explanation:

The ratio of drawing and field is 1:90.

So we have to make 450 m into cm.

450 -> is 45,000

Now we can make 2 fractions,

$\frac{1}{90}=\frac{x}{45000}$

Cross multiply

90*x = 90x

1*45000 = 45000

90x = 45000

Divide 90 to both sides

x = 500cm

Thus,

the drawing's field is 500cm or 5m long.

Hope this helps :)

5 0

3 years ago

6ya +7y{a Find the sum O 13y^2 O O 13ay O 13y/2a 0 13ya

tangare [24]

Since there the same variable together just add the number
13ay is your answer
Sorry for who ever that annoying person is who uploaded those disturbing pictures...
Hope this helps! Have a nice day :)

4 0

3 years ago