2 years ago

Write an equivalent expression for 7(2x - 3y + 6) by modeling and by using the distributive property.

Mathematics

1 answer:

alexandr402 [8]2 years ago

3 0

14x-21y+42 is the answer to this question.

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jolli1 [7]

Answer: 5(13.5-4.5)

5(9)

=45

6 0

2 years ago

What is the value of x?

solniwko [45]

Answer:

x = 7.5

Step-by-step explanation:

Since we see that sides AD and DC are equal, as well as sides BE and EC, we can use this information to conclude that the value of 2x-7 is equal to double the value of DE.

2x - 7 = 4(2)

2x - 7 = 8

2x - 7 + 7 = 8 + 7

2x = 15

x = 7.5

5 0

1 year ago

A,B, C and D are the four corners of a rectangular plot marked out on level ground. Given that the bearing of B from A is 40 and

Elden [556K]

Answer:

given - a rectangle ABCD

AB = 40

AC. = 90

BC = ?

in triangle ABC

using Pythagoras theorem

(AB) ² + (BC) ² = (AC) ²

(40)² + (BC) ² = (90)²

(BC) ² = (90)²- (40)²

(BC) ² = 8100 - 1600

(BC) ² = 6500

BC =

$20 \sqrt{10}$

7 0

1 year ago

If there are 40 entries in a science fair how many ways can the students finish 1st, 2nd, and 3rd

ohaa [14]

The answer is 59,280 . To find you multiply 40 x 39 x 30 which 59,280

8 0

2 years ago

What is the constant of proportionality<br>help me what does this mean pls tell me

Fantom [35]

Answer:

The constant value (often written k) relating amounts that rise or fall uniformly together. It is the ratio of the amounts y and x: k = y/x. Put another way: y = kx.

Step-by-step explanation:

The constant value (often written k) relating amounts that rise or fall uniformly together. It is the ratio of the amounts y and x: k = y/x. Put another way: y = kx.

3 0

2 years ago

Read 2 more answers