3 years ago

Of the 100 oil paintings at the museum, 28 were portraits. What percentage of the oil paintings on display were portraits?

Mathematics

1 answer:

Katena32 [7]3 years ago

7 0

Answer:

28/100 * 100

the answer is 28 %

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Use the graphing calculator to graph the quadratic function y = x2 − 5x − 36. Which value is a solution of 0 = x2 − 5x − 36?

Nuetrik [128]

Answer: -4

Step-by-step explanation:

Once you graph it, the solutions are where the graph meets the x axis.

This is at -4 and 9.

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2 years ago

Ellen wants to purchase a book that is regularly priced at $18. The book is discounted 15%. She also needs to pay a 6% sales tax

Aloiza [94]

15% of 18 .
so. 18×15)÷100= 2.7
18-2.7= 15.3
now 6% of 15.3.
so 6×15.3)÷100=0.918 or 0.92
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3 years ago

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If 40% of x + 20% of x + 1/10 = 75% of x, then find the value of x. Please give answers with steps

tatyana61 [14]

Answer:

x = 13/12

Step-by-step explanation:

explain on image

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3 years ago

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Ariel left her home at 9 a.m., driving at 45 mph. At 11 a.m. her brother left the home and started after her at 60 mph. At what

Vlada [557]

Answer:

5:00 pm

Step-by-step explanation:

Let

x -----> the umber of hours

y ----> the total distance in miles

we know that

The distance is equal to the speed multiplied by the time

Find out the distance traveled by Ariel at 11:00 am

11:00 am-09:00 am=2 hours

45(2)=90 miles

<em>Ariel's linear equation is</em>

$y=45x+90$ ----> equation A

<em>Ariel's brother linear equation is</em>

$y=60x$ ----> equation B

Equate equation A and equation B

$60x=45x+90$

Solve for x

$60x-45x=90$

$15x=90$

$x=6\ hours$

Adds 11:00 am + 6 hours=17:00 =5:00 pm

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4 years ago

Can someone help me? I need to turn this in ASAP!! Right answer gets brainliest <3

Ket [755]

Answer:

interval 41-50 and 61-70 i think

Step-by-step explanation:

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3 years ago