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3 years ago

What is 21divided by 7/4

Mathematics

1 answer:

Ainat [17]3 years ago

3 0

21/1 divided by 7/4 = 21/1 x 4/7 = 12.

Hope this helped my guy.

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I need some serious help with standard form, Im really confused . Here's a problem ,

OLEGan [10]

I can see that the equation given above is a linear equation since y and x are the only variable and the degree is one. The standard form of a linear equation is written as:

Ax + By = C

We write the given equation into standard form as follows:

<span>y - 2 = 2(x - 3)
</span><span>y - 2 = 2x - 6
y -2x = -6 +2
y - 2x = -4
2x - y = 4</span>

6 0

3 years ago

The diagram shows a prism.

telo118 [61]

Answer:

Total surface area of the prism = 920 cm²

Step-by-step explanation:

Given prism has 2 similar triangular surfaces and 3 rectangular surfaces of different dimensions.

Area of one triangular side = $\frac{1}{2}(\text{Base})(\text{Height})$

Area of 2 similar sides = Base × Height

= 8 × 15

= 120 cm²

Area of rectangular side with dimensions 17cm × 20cm

Area of the side = 17 × 20 = 340 cm²

Area of the second rectangular side with dimensions 8cm × 20cm

Area of the side = 8 × 20 = 160 cm²

Area of third rectangular side with dimensions 20cm × 15cm

Area of the side = 20 × 15 = 300 cm²

Total surface area of the given triangular prism = 120 + 340 + 160 + 300

= 920 cm²

6 0

3 years ago

If x=9 and y=−3, evaluate the following expression:7(2x−3y)

LuckyWell [14K]

Answer:

189

Step-by-step explanation:

You can replace the values of x with 9 and the values of y with (-3).

7(2x-3y) = 7(2 × 9 - 3 × -3)

= 7(18 - -9)

= 7(18+9)

= 7 × 27

= 189

7 0

3 years ago

Read 2 more answers

5/8 divide by 1/4 simplest form

rewona [7]

It's 5/2 not simplified and 2.5 simplified

7 0

3 years ago

Line z has a slope of 2.5 and goes through point (4, 13). Which equation best represents line z?

Rus_ich [418]

Answer:

y - 13 = (5/2)(x - 4)

Step-by-step explanation:

Here we know the slope and one point on the line. Use the point-slope formula:

y - k = m(x - h).

Substituting 13 for k, 4 for x and 2.5 for m, we get:

y - 13 = (5/2)(x - 4)\

7 0

3 years ago