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3 years ago

PLZ HELP ME NOW!!!!!!!!

Mathematics

1 answer:

Savatey [412]3 years ago

5 0

Answer:

Step-by-step explanation:

speed= distance/time = 10/8 = 1.25cm/s

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Evaluate the expression 5(8y+3r-5z) if r=3,y=5/8,and z=2

snow_lady [41]

First you plug in the missing values
5(8×5/8+3×3-5×2) = 20

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2 years ago

which is an algebraic equation that represent s the following word problem that shows how many bonus points , s, Samantha earned

Anna35 [415]

A = 15 a = athena, s = samantha, b = bonus points
s = b + a

s = b + 15

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2 years ago

Write an inequality that models a real world situation. Describe your situation and what a variable X represents

AfilCa [17]

Answer:

The variable X represents:

X = the number of books

The real world situation can be:

1.) Jennie reads books. She reads each books for

2.) Jennie wants to read book at least 5 books today.

Write an inequality that models the minimum number of books that Jennie needs to read.

The inequality for this situation is:

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3 years ago

The rectangle below has an area of x^2-6x-7 square meters and a width of x-7 meters

Illusion [34]

Complete Question:

The rectangle below has an area of x^2-6x-7 square meters and a width of x-7 meters. What expression represents the length of the rectangle?

Answer:

<h3>The expression represents the length of the rectangle is (x + 1) meter</h3>

Solution:

Given that,

$\text{Area of rectangle} = x^2 - 6x - 7 \\\\Width = x - 7$

TO FIND: LENGTH = ?

We know that,

$Area\ of\ rectangle = length \times width \\\\Therefore\\\\x^2 - 6x - 7 = length \times x - 7\\\\length = \frac{x^2 - 6x - 7 }{x - 7 }\\\\length = \frac{(x-7)(x + 1)}{x - 7}\\\\\text{cancel out x-7 from numerator and denominator} \\\\length = x + 1$

Thus expression represents the length of the rectangle is (x + 1) meter

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3 years ago

If f(x) = 3x - 2 and g(x) = 2x + 1, find (f+g)(x).

jeka57 [31]

Answer:

Step-by-step explanation:

(f + g)(x) = f(x) + g(x)

f(x) + g(x)

= 3x - 2 + 2x + 1 ← collect loke terms

= 5x - 1 → A

5 0

3 years ago