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3 years ago

I NEED HELP IN 8TH GRADE MATH PLZ

Mathematics

1 answer:

Ulleksa [173]3 years ago

6 0

80.1*10^7

the * means times or x

but in algebra you use variables

x is common for a variable

so I use an asterisk

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-5(-4/7) This is Algebra 8th Grade Please Helppp

aksik [14]

You distribute the 5 into the equation,
you also have to follow the signs, negative times a negative is a positive
so you get 20/7

3 0

3 years ago

Read 2 more answers

A statue stands on a 625 m2 base. An artist creates a replica using a ratio of 1:10 What is the area of the replica's base?

DedPeter [7]

The new area of the given replica's base is; 6250 m²

<h3>What is the required area?</h3>

We are given;

Area of base of statue = 625 m²

Now, an artist wants to create a replica of the base of statue but in the ratio 1:10.

This means that the area will increase by a factor of 10 as 1 sq.unit of the old area will represent 10 sq. units in the new one.

Thus, new area = 625 * 10

New area of statue = 6250 m²

Read more about new area at; brainly.com/question/26858128

3 0

2 years ago

A vender is loading candybars into a vending machine. Each slot holds 130cm of candy barsand each candy bar is 1.5cm thick, how

elena-14-01-66 [18.8K]

Answer:

Step-by-step explanation:

since the slot is 130 cm thick you divide that by the thickness of the candy bar 130/1.5 and then you get 86.6666666.....which rounds to 86 because the slot is not thick enough for another candy bar. good luck on whatever you needed this for!

8 0

3 years ago

What is the simplified form of the following expression?

ziro4ka [17]

For this case we must simplify the following expression: $7 (\sqrt [3] {2x}) - 3 (\sqrt [3] {16x}) - 3 (\sqrt [3] {8x})$

We rewrite:

$16x = 2 ^ 3 * 2x\\8x = 2 ^ 3 * x$

We rewrite the expression:

$7 (\sqrt [3] {2x}) - 3 (\sqrt [3] {2 ^ 3 * 2x}) - 3 (\sqrt [3] {2 ^ 3 * x}) =$

By definition of properties of powers and roots we have:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

Then, taking the terms of the radical:

$7 (\sqrt [3] {2x}) - 3 (2 \sqrt [3] {2x}) - 3 (2 \sqrt [3] {x}) =\\7 \sqrt [3] {2x} -6 \sqrt [3] {2x} -6 \sqrt [3] {x} =$

We add similar terms:

$\sqrt [3] {2x} -6 \sqrt [3] {x}$

Answer:

Option C

7 0

3 years ago

Grace rolled 33 inches of noodle dough. Each noodles is 3/8 long. How many noodles can she make?

victus00 [196]

Answer:

Step-by-step explanation:

33 ÷ 3/8

------------------

3/8 = 0.375

------------------------

33 ÷ 0.375 = 88

4 0

3 years ago