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3 years ago

Solving two-step equations 5x+8=23

2 answers:

andrey2020 [161]3 years ago

7 0

You have to subtract 8 from the left and then 8 from the right. If you do that then you'll have 5x=15.
Then you divide "x" by 5 and 15 by 5.
X=3

marishachu [46]3 years ago

7 0

Subtract the 8 from both sides and you’d have 15 then divide the 5x from both sides and x=3

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A patient’s systolic blood pressure drops from 210 mmHg to 100 mmHg in 10 minutes after they took nitroglycerin. Calculate the p

denpristay [2]

Answer:

Step-by-step explanation:

8 0

3 years ago

When 142 is added to a number, the result is 64 more than 3 times the number. Find the number.

pishuonlain [190]

Answer:

x + 142 =3x + 64

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5 0

3 years ago

Read 2 more answers

What is 30/78 simplified

Anton [14]

30/78 simplified is 15/39

3 0

3 years ago

How long would it take franklin to shovel the driveway alone?

motikmotik

Answer:

Time taken by Franklin to shovel alone is 65.5 minutes.

Step-by-step explanation:

Let the time taken by Franklin to shovel alone = x minutes.

Since, the time taken by Angela to shovel = 180 minutes and the time taken by both = 48 minutes.

Then, we have,

Amount of shoveling done in 1 minute by Angela = $\frac{1}{180}$

Amount of shoveling done in 1 minute by both = $\frac{1}{48}$

Amount of shoveling done in 1 minute by Franklin= $\frac{1}{x}$

So, we have,

$\frac{1}{180}+\frac{1}{x}=\frac{1}{48}$

i.e. $\frac{x+180}{180x}=\frac{1}{48}$

i.e. $48(x+180)=180x$

i.e. $48x+8640=180x$

i.e. $132x=8640$

i.e. x= 65.5 minutes

Thus, the time taken by Franklin to shovel alone is 65.5 minutes.

7 0

3 years ago

HELP

Semmy [17]

The second and third functions both decrease with a slope of -4, but the second fiction has a y intercept of -3 and the third has a y intercept of +3. The first and fourth functions are both increasing with a slope of positive 4. The first one has a y intercept of -3, but the fourth has a y- intercept of -3. all of the functions are linear.

it helps to write all as equations

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3 years ago