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3 years ago

If x - 7 = 10, then x = 17. This statement demonstrates:

Mathematics

2 answers:

harkovskaia [24]3 years ago

8 0

C. the addition property of equality

Neporo4naja [7]3 years ago

8 0

Hi there!

Answer:

C. Addition property of equality

Step-by-step explanation:

Addition property of equality: a+b=a+c

First, you add by 7 from both sides of an equation.

$x-7+7=10+7$

Then, you add by the numbers from left to right.

$10+7=17$

Therefore, the final answer is x=17.

I hope this helps you!

Have a nice day! :)

-Charlie

Thank you so much! :)

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Answer:

yes

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3 years ago

16 increased by twice a number is -24

wlad13 [49]

X-the number

16 + 2x = -24 |subtract 16 from both sides

2x = -40 |divide both sides by 2

x = -20

Answer: The number is -24

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3 years ago

If |lm and m<6 = 4x - 15 and m<7 = x+30, then m<6 = 35 45 39 15

pentagon [3]

Answer:

∠ 6 = 45°

Step-by-step explanation:

∠ 6 and ∠ 7 are alternate angles and are congruent, thus

4x - 15 = x + 30 ( subtract x from both sides )

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4 0

3 years ago

Julie and Eric row their boat (at a constant speed) 55 miles downstream for 5 hours, helped by the

Archy [21]

Answer: C = 3 mph is the rate of the current.

Step-by-step explanation:

Hey there!

You can use the distance formula (d = rt) to solve this problem.

Downstream trip: d = 55 miles, t = 5 hours, and r = R + C

R + C is their rowing speed (R) plus the rate of the current (C).

Upstream trip: d = 55 miles, t = 11 hours, and r = R - C

R - C is their rowing speed (R) minus the rate of the current (C).

Downstream: 55 mi. = (R + C)5 hrs. Divide both sides by 5: R + C = 11

Upstream: 55 mi. = (R - C)11 hrs. Divide both sides by 11: R - C = 5

Calculations

R + C = 11 Subtract C from both sides.

R = 11 - C Substitute this into: R - C = 5

(11 - C) - C = 5 Simplify and solve for C

11 - 2C = 5 Add 2C to both sides.

11 = 2C + 5 Subtract 5 from both sides.

6 = 2C Divide both sides by 2

C = 3 mph is the rate of the current.

~I hope I helped you! :)~

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3 years ago

Help me please please please PLEASE! NO LINKS

tresset_1 [31]

Answer:

for the first one its right one down 4

for the second one its right 4 down 1

for the last one its left 1 up 4

im pretty sure i helped u with your other one too

hope this helps

7 0

3 years ago

Read 2 more answers