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Zina [86]
3 years ago
9

One number is seven more than the other. Their sum is fifteen. Find the numbers.

Mathematics
2 answers:
Tpy6a [65]3 years ago
8 0

Answer:

_+7=15

15-7=8

8+7=15

Step-by-step explanation:

aniked [119]3 years ago
7 0

Answer:

The numbers are 4 and 11.

Step-by-step explanation:

If one number is 7 more than the other, you can express that as x+7 is equal to the other number which we can call "y".

If you add "y" which is basically x+7 to x, which is one of the numbers, your equation will be x+x+7=15.

Simplify: 2x+7=15.

Subtract 7 from both sides of the equation and you have 2x=8.

Divide by 2 on both sides and x is equal to 4.

You plug 4 back into the expression "x+7".

4 plus 7 is 11.

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There are 4 white marbles and 6 blue marbles in a bag. Jamie will randomly pick two marbles out of the bad without replacing the
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Step-by-step explanation:

Total marbles = 10

No of white marbles = 4

No of blue marbles = 6

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3 years ago
3 coins are flipped.
Paul [167]

Answer:

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Step-by-step explanation:

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3 years ago
The distance between two towns is 21.673 km. Round of the distance to nearest 0.01 km.
Volgvan

Answer:

21.67

Step-by-step explanation:

look at the number in the 0.01 value then the number next to it

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6 0
3 years ago
A tourist looks out from the observation deck of the Space Needle in Seattle. The deck is at a height of 520 ft. She sees her fr
evablogger [386]

Answer:

40 feet

Step-by-step explanation:

Given : The deck is at a height of 520 ft. She sees her friend on the ground below at an angle of depression of 85.6 degrees.

To Find : What is the distance between the two? Round your answer to the nearest tenth of a foot.

Solution :

Refer the attached figure

Height of deck =AB =520 ft.

Angle of depression ∠C = 85.6°

We are supposed to find length of BC i.e. distance between two.

We will use trigonometric ratios :

tan \theta = \frac{perpendicular}{base}

tan 85.6^{\circ} = \frac{AB}{BC}

12.99615= \frac{520}{BC}

BC= \frac{520}{12.99615}

BC= 40

Thus the distance between two is 40 feet


7 0
3 years ago
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