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3 years ago

8

Ethan correctly 80% of the total questions on his history Test. He correctly answers 32 question how many questions are on Ethan

's History Test.

2 answers:

Snowcat [4.5K]3 years ago

5 0

40 questions,
80% * 40= 32

hope I helped (:

natka813 [3]3 years ago

3 0

40 questions because 80% of 40 is 32

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3x+2y=6 -
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3 years ago

Could someone help me understand how to solve this?

monitta

Answer:

Amount in 4% account: $550

Step-by-step explanation:

Use simple interest formula $I=P\cdot r\cdot t,$ where

I = interest

P = principal

r = rate (as decimal)

t = time.

<u>4% account:</u>

$P_1=x\\ \\r_1=0.04\\ \\t_1=1,$

then

$I_1=x\cdot 0.04\cdot 1=0.04x$

<u>5% account:</u>

$P_2=1,500-x\\ \\r_2=0.05\\ \\t_2=1,$

then

$I_2=(1,500-x)\cdot 0.05\cdot 1=0.05(1,500-x)$

You have earned $69.50 in total, so

$I_1+I_2=69.50\\ \\0.04x+0.05(1,500-x)=69.50\\ \\4x+5(1,500-x)=6,950\\ \\4x+7,500-5x=6,950\\ \\4x-5x=6,950-7,500\\ \\-x=-550\\ \\x=550\\ \\1,500-x=1,500-550=950$

Amount in 4% account: $550

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3 years ago

Can someone help me with this! It would be much appreciated!!

love history [14]

Answer:

1. parallelogram

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5. trapezoid

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3 years ago

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I simply used a Scientific Notation Converter

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Vilka [71]

Answer:

Each orange would cost $0.64.

Step-by-step explanation:

If you do 3.84 and divide that by 6, you would get the answer of $0.64 for each orange.

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3 years ago