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2 years ago

PLs HElp I ONLY HAVE AN HR

Mathematics

2 answers:

Nady [450]2 years ago

5 0

Answer:

Step-by-step explanation:

you multiply a positive with a negative=negative (3)(-3)=-9

(-9)(-2)=+18(4)=72 positive

FrozenT [24]2 years ago

4 0

Answer:

Step-by-step explanation:

just read through the answer choices and you can see that the other three are wrong

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The side of the parallelogram in the figure above are given in cm.

GrogVix [38]

solution

or, 2 x + y = 5 y - 8 being opposite side of

parallelogram

or , 2x =5 y - y - 8

or, 2x = 4 y - 8

or, x = 4y - 8/2

or,. x = 2y- 4

therefore, 2x + y is equal to 5 y - 8 Being the opposite side of a parallelogram

now,

3y + 2 x is equal to 4x - 3 being opposite side of a parallelogram

or, 3y + 2 x-4x = -3

or,. 3y -2x = -3

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3 years ago

A man is 25 years old. His mother is exactly three times his age. How old will the man’s mother be when he is 35 years old?

klio [65]

Answer:

Step-by-step explanation:

Note the mother is 3x his age when he is 25 years old. Multiply 3 with 25:

3 x 25 = 75

Ten years pass (35 - 25 = 10). Add 10 to 75:

75 + 10 = 85

When the man is 35 years old, his mother will be 85 years old.

4 0

3 years ago

Ac=r+d for a solve equation for the indicated variable

konstantin123 [22]

$\boxed{a=\frac{r+d}{c}}$

<h2>Explanation:</h2>

Here we have the following expression:

$ac=r+d$

And the question asks for solving the equation for the variable $a$ . So we need to divide both sides of the equation by $c$ :

$ac=r+d \\ \\ \frac{ac}{c}=\frac{r+d}{c} \\ \\ \\ But: \\ \\ \frac{c}{c}=1 \\ \\ \\ So: \\ \\ \boxed{a=\frac{r+d}{c}}$

<h2>Learn more:</h2>

Solving equations: brainly.com/question/10643312

#LearnWithBrainly

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3 years ago

Find the ratio of: (a) 5 km to 400 m (b) 2 hours to 160 minutes

aleksandr82 [10.1K]

Answer:

Answer - a) 1:80

b) 1:80

Step-by-step explanation:

All the ratio should be written in lowest form. these are the answers for both the questions.

Pls Mark Brainliest !!!!!!!!!!!!!!

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2 years ago

Read 2 more answers

A ball is thrown vertically upward.After t seconds its height(in feet)is given by the function h(t)=84t=16t^2.What is the maximu

Novay_Z [31]

21 seconds!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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3 years ago