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ki77a [65]
3 years ago
7

I don’t know how to solve this

Mathematics
1 answer:
Tresset [83]3 years ago
3 0

Step-by-step explanation:

Let's solve for x.

x/3z=y−2

Step 1: Divide both sides by z/3.

1/3xzz/3=y−2/z3

x=3y−6/z

Answer:

x=3y−6/z

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Zander read 13 3/4pages in 1/4 of an hour. Sydney read 43 1/3 pages in 2/3 of an hour. At these rates, would Zander or Sydney re
kakasveta [241]

Answer:

At these rates Sydney read 10 pages per hour more than Zander.

Step-by-step explanation:

Zander read 13\frac{3}{4} pages in \frac{1}{4} of an hour.

Therefore, pages read by Zander in 1 hour = \frac{\text{Total pages read}}{\text{Total time taken}}

= \frac{13\frac{3}{4}}{\frac{1}{4}}

= \frac{55}{4}\times \frac{4}{1}

= 55 pages per hour

Sydney read 43\frac{1}{3} pages in \frac{2}{3} of an hours.

Pages read by Sydney in 1 hour = \frac{43\frac{1}{3}}{\frac{2}{3} }

= \frac{130}{3}\times \frac{3}{2}

= 65 pages per hour

Therefore, number of pages read more by Sydney as compared to Zander,

= 65 - 55

= 10 pages per hour

At these rates Sydney read 10 pages per hour more than Zander.

4 0
3 years ago
3. Find f[h(a+4)], given the functions below. *
mote1985 [20]

Answer:

C 5a^2 +70a +240

Step-by-step explanation:

We have given these following functions:

f(x) = 5x, g(x) = -2x + 1, h(x) = x^2 + 6x + 8

h(a+4)

This function is:

h(a+4) = (a+4)^2 + 6(a + 4) + 8

h(a+4) = a^2 + 8a + 16 + 6a + 24 + 8

h(a+4) = a^2 + 14a + 48

f[h(a+4)]

f(x) = 5x

Thus

f(h(a+4)) = f(a^2+14a+48) = 5(a^2 + 14a + 48) = 5a^2 + 70a + 240

The correct answer is given by option C.

8 0
3 years ago
AEFG - ALMN. Find the ratio of AEFG to ALMN.<br><br> A)1:4<br> B)1:2<br> C)2.1<br> D)4:1
vovikov84 [41]

Answer:

C)2 : 1

Step-by-step explanation:

AEFG ≈ ALMN

FG / MN = 4 / 2 = 2/1

So the ratio of AEFG to ALMN = 2 / 1 or 2 : 1

6 0
3 years ago
Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 2. (Input decimals only, such as 12.71, as the answer
ivolga24 [154]
3.14((4^2)+(4)(2))
3.14(16+8)
3.14(24)
=75.36

You just want to plug in the values of a and b into the equation and solve using order of operations. Hope this helps!
8 0
3 years ago
Read 2 more answers
Observe the expression below and select the true statement(s).<br><br> 3y(7 + 2x) + 9xy - 10
Sedaia [141]

Answer:

The "3y" in the first term is a factor

The "9" in the second term is a coefficient

The "(7 + 2x)" in the first term is a factor

Step-by-step explanation:

Given in the question an expression

3y(7 + 2x) + 9xy - 10

  1. The coefficients are the numbers that multiply the variables, x and y.
<h3>Example</h3>

6y

6 is coefficient

    2.Constants are terms without variables

<h3>Example</h3>

 10

    3.The factors in a mathematical expression are parts of the expression that are connected with multiplication.

<h3> Example</h3>

(4x+1)(3x+7)

(4x+1) and (3x+7) both are factors

6 0
3 years ago
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