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3 years ago

6

PLEASE HELP! Estimate 132% of 42

1 answer:

Arturiano [62]3 years ago

3 0

Answer:

55.44 i believe

Step-by-step explanation:

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Solve this for me plzzzz and thxxx

Shkiper50 [21]

answer: (-6,6) that's youre answer

5 0

3 years ago

Read 2 more answers

Solve the system of linear equations by substitution.<br> 2x-y=3<br> x+5y=14

adoni [48]

Let 2x – y = 3 ——— equation 1

Let x + 5y = 14 ——— equation 2

Making x the subject in eqn 1, = x = y + 3 / 2 ——— eqn 3

• Put eqn 3 in eqn 2

(y + 3 / 2) + 5y = 14

6y = 14 – 3/2

6y = 25/2

y = 25/12

• put y = 25/12 in eqn 3

x = (25/12 + 3/2)

x = 43/12

4 0

3 years ago

Decrease 18 tonnes by 30%

Leviafan [203]

10% of 18 tonnes = 1.8 tonnes
30% of 18 tonnes = 5.4 tonnes
18 - 5.4 tonnes = 12.6 tonnes

5 0

4 years ago

Factor completely 5x2 + 20x.<br><br> Prime<br><br> 5(x2 + 4x)<br><br> x(5x + 20)<br><br> 5x(x + 4)

astra-53 [7]

5 is common factor
also x
reverse distributive
ab+ac=a(b+c)

5x(x)+5x(4)=5x(x+4)

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3 0

3 years ago

Read 2 more answers

PWEASE HELP ASAP my friends and I cant figure this out I'm hoping one of u guys can

Degger [83]

The number of viruses was 4000 times greater than number of protozoa.

Step-by-step explanation:

Given,

Number of protozoa = $5*10^5$

Number of viruses = $2*10^9$

Let,

x be the number of times number of viruses is greater than number of protozoa.

Number of viruses = Number of time * Number of protozoa

$2*10^9=(5*10^5)x$

Dividing both sides by $5*10^5$

$\frac{2*10^9}{5*10^5}=\frac{(5*10^5)x}{5*10^5}\\\\4*10^3= x\\x=4*10^3 \\x=4000$

The number of viruses was 4000 times greater than number of protozoa.

Keywords: division, scientific notation

Learn more about division at:

#LearnwithBrainly

3 0

4 years ago