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Rom4ik [11]
3 years ago
12

I need hep with theese two quetions

Mathematics
2 answers:
shutvik [7]3 years ago
7 0
85 percent of 90 is 76.5

60 is 90 // answer: 66.6% or 66.66666667%
Goshia [24]3 years ago
3 0
80% of 90 is 76.5

60% of 90 is 66.6
You might be interested in
Mira has breakfast at a restaurant. She leaves a 20% tip of $1.80
iogann1982 [59]

Answer:

36 cents.

Step-by-step explanation:

20 percent of $1.80 is 36 cents

3 0
3 years ago
Read 2 more answers
1) Eliot and William went hiking. They went at the same speed. Eliot's hike was 8 miles, and William's hike was 12 miles. It too
Vitek1552 [10]

Answer:

1) 2 hours

2) 96 miles

Step-by-step explanation:

1) Eliot and William went hiking. They went at the same speed. Let x mph be their speed.

<u>Elliot:</u>

Distance = 8 miles

Speed = x mph

Time =\dfrac{8}{x} hours

<u>William:</u>

Distance = 12 miles

Speed = x mph

Time =\dfrac{12}{x} hours

It took Eliot 40\ min=\dfrac{40}{60}\ hour=\dfrac{2}{3}\ hour less than William, then

\dfrac{8}{x}+\dfrac{2}{3}=\dfrac{12}{x}\\ \\\dfrac{2}{3}=\dfrac{12}{x}-\dfrac{8}{x}\\ \\\dfrac{2}{3}=\dfrac{4}{x}\\ \\2x=3\cdot 4\ \ [\text{Cross multiply}]\\ \\2x=12\\ \\x=6\ mph

So, William's hike was

\dfrac{12}{6}=2

hours long.

2) <u>Initially:</u>

Distance = 120 miles

Speed = 55 mph

Time =\dfrac{120}{55}=2\dfrac{10}{55}=2\dfrac{2}{11}\ hours

<u>Final:</u>

Speed = 44 mph

Time =2\dfrac{2}{11} hours

Distance =44\cdot 2\dfrac{2}{11}=44\cdot \dfrac{24}{11}=4\cdot 24=96\ miles

8 0
3 years ago
A statue is 70 cm tall. when its shadow is 61 cm? long, the shadow of a certain tree is 22 m long. how tall is the? tree
Ann [662]
Ratio and Proportions
61:70=ratio of statue

?:22=61:70
?/22=61/70
Move 22 over the equal sign
?=61*22/70
?=1342/70
?=19.1714286 

The tree is 19.1714286m tall

Hope this helps!

8 0
4 years ago
A fruit seller packed some apples into 15 small cartons and 20 big cartons. Each big carton contained 15 more apples than each s
ehidna [41]

Answer:

720 apples

Step-by-step explanation:

Let A be the number of apples in the small pack.

QTY for Small Cartons is 15A,

QTY for Big Cartons is 20(A+15) = 20A+300

From small cartons makes 25% or 1/4 of total, means the big carton makes 75% of total, or 3/4 of total. This also means the qty in big carton is 3 times of small carton

20A+300 = 3X (15A)= 45A

300 = 25A

A=12

Altogether = 15A+(20A+300) = 720 Apples

7 0
2 years ago
W−2+2w=6+5w please helppp
Lerok [7]

Answer:

Step-by-step explanation:

Simplifying

W + -2 + 2w = 6 + 5w

Reorder the terms:

-2 + W + 2w = 6 + 5w

Solving

-2 + W + 2w = 6 + 5w

Solving for variable 'W'.

Move all terms containing W to the left, all other terms to the right.

Add '2' to each side of the equation.

-2 + W + 2 + 2w = 6 + 2 + 5w

Reorder the terms:

-2 + 2 + W + 2w = 6 + 2 + 5w

Combine like terms: -2 + 2 = 0

0 + W + 2w = 6 + 2 + 5w

W + 2w = 6 + 2 + 5w

Combine like terms: 6 + 2 = 8

W + 2w = 8 + 5w

Add '-2w' to each side of the equation.

W + 2w + -2w = 8 + 5w + -2w

Combine like terms: 2w + -2w = 0

W + 0 = 8 + 5w + -2w

W = 8 + 5w + -2w

Combine like terms: 5w + -2w = 3w

W = 8 + 3w

Simplifying

W = 8 + 3w

6 0
3 years ago
Read 2 more answers
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