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Greeley [361]
3 years ago
13

SUPER HARD!!!

Mathematics
2 answers:
Sonbull [250]3 years ago
8 0

Answer:

For #1, the equation would be (21 - 3) ÷ 4.75 ≈ 4. For #3, the equation would be (900 + 10) ÷ 5 = 182. For #5, the equation is (22 x 2) - 5 = 39.

Step-by-step explanation:

im cool but srsly pls double check this

Harman [31]3 years ago
3 0

Answer:

for 1 the equation would be (21 - 3) ÷ 4.75 = 4

Step-by-step explanation:

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2.4 kilometres per hour

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Dichlorosilane is a compound that contains silicone, hydrogen, and chlorine atoms.it has the chemical formula SIH2CI2. Which sta
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Step-by-step explanation:

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3 years ago
a bottle of hand lotion is on sale for $2.25 . If this price represents a 50% discount from the original price , what is the ori
N76 [4]
So 2.25 is 50% of the original price
let's write original price as x
50% of x = 2.25
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divide both sides by 0.5
x = 4.5

The original price is 4.5

To check:
50% * (4.5) =?= 2.25
0.5 * 4.5 =?= 2.25
2.25 = 2.25

Hope this helps.
6 0
3 years ago
A study was conducted to investigate whether a new drug could significantly reduce pan in people with arthritis. From a group of
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Answer:

d. Yes. All conditions for inference have been met.

Step-by-step explanation:

A study was conducted to investigate the effectiveness of a new drug whether it could significantly reduce pan in people with arthritis.

From a group of 500 people with arthritis 250 were randomly assigned to receive the drug (group 1) and the remaining people were assigned a placebo (group 2).

It is given that the people in the study were selected randomly.

The pooled proportion is given by

Pe = no. of people who reported pain relief in both groups/total number of people

Pe = (225 + 150)/500

Pe = 375/500

Pe = 0.75

Now let us check the condition np ≥ 10

250*0.75

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Satisfied

Now let us check the condition n(1 - p) ≥ 10

250(1 - 0.75)

250*0.25

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3 years ago
Pleaseee helppp answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!!!!
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Answer:

2t+2u+2v+4w

Step-by-step explanation:

Add up all of the terms

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