MATHEMATICS HIGH SCHOOL

-9(m+3) +14=-49 please show work

Answers

Answer 1

Answer:

Answer:

m=4

Step-by-step explanation:

−9(m+3)+14=−49

Step 1: Simplify both sides of the equation.

−9(m+3)+14=−49

(−9)(m)+(−9)(3)+14=−49(Distribute)

−9m+−27+14=−49

(−9m)+(−27+14)=−49(Combine Like Terms)

−9m+−13=−49

−9m−13=−49

Step 2: Add 13 to both sides.

−9m−13+13=−49+13

−9m=−36

Step 3: Divide both sides by -9.

−9m

−9

−36

−9

m=4

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Answers

$\huge\boxed{\boxed{\bold{(3, 1)}}}$

$\hrulefill$

I'm assuming you need to find the solution to this system of equations (where the lines intersect).

We can use the substitution method to solve this system. Take the value of $y$ from the second equation and substitute it into the first:

$-2x+7=x-2$

Add $2x$ to both sides of the new equation:

$7=3x-2$

Now add $2$ to both sides of the equation:

$9=3x$

Divide both sides by $3$ :

$\boxed{3}=x$

Now let's solve for $y$ by substituting the known value of $x$ into the first equation:

$y=3-2$

Simplify using subtraction:

$y=\boxed{1}$

This means our solution is:

$\large\boxed{(3, 1)}$

Answer:

x = 3, y = 1

Step-by-step explanation:

Solve the following system:

{y = x - 2 | (equation 1)

y = 7 - 2 x | (equation 2)

Express the system in standard form:

{-x + y = -2 | (equation 1)

2 x + y = 7 | (equation 2)

Swap equation 1 with equation 2:

{2 x + y = 7 | (equation 1)

-x + y = -2 | (equation 2)

Add 1/2 × (equation 1) to equation 2:

{2 x + y = 7 | (equation 1)

0 x+(3 y)/2 = 3/2 | (equation 2)

Multiply equation 2 by 2/3:

{2 x + y = 7 | (equation 1)

0 x+y = 1 | (equation 2)

Subtract equation 2 from equation 1:

{2 x+0 y = 6 | (equation 1)

0 x+y = 1 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 3 | (equation 1)

0 x+y = 1 | (equation 2)

Collect results:

Answer: {x = 3, y = 1

I need help Brainliest

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1: co-pay
2: allows young adults to stay under parents insurance till 26
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A pair of jeans regularly sells for $24.00. They are on sale for 25% off. What is the sale price of the jeans?

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18 dollars. $24.00 * .75 = 18. Or 24 *.25 = 6, 24 - 6 = 18.

a paddle boat can move at a speed of 6km/h in still water. the boat is paddeled 16km downstream in a river in the same time it takes to go 8km upstream what is the speed of the river?

Answers

$v-the\ speed\ of\ the\ river\n\n16:(6+v)=8:(6-v)\n\n(16)/(6+v)=(8)/(6-v)\n-------------\nmultiply\ on\ the\ cross\n-------------\n8(6+v)=16(6-v)\n\n48+8v=96-16v\n\n8v+16v=96-48\n\n24v=48\ \ \ /:24\n\nv=2\ (km/h)\leftarrow Answer$

Please help asap 25 pts

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$C.\ exponential;\ y=98\cdot0.79^x$

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People use water to cook, clean, and drink every day. An estimate of 17.2% of the water used each day is for cooking . If a family uses 68.8 gallons of water a day for cooking, how many gallons do they use every day?

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Ummmmmmm try using those things that help ppl with math

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