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Lynna [10]
2 years ago
9

A bag contains 63 marbles, some white and some green. The ratio of white marbles to green ones is 2:7.

Mathematics
1 answer:
Jet001 [13]2 years ago
7 0

Answer:

2:7 = 14:59

Step-by-step explanation:

2 + 7 = 9

63 divided by 9 = 7

Get the 2 from "2:7"

2 x 7 = 14

Get 7 from "2:7"

7 x 7 = 49

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ZA and ZB are vertical angles. If m A = (8x – 20)° and m B = (3x – 5)º,
kobusy [5.1K]

Answer:

x=11

Step-by-step explanation:

Vertical angles are congruent, so m∠A = m∠B.

4x+8 = 5x-3

Subtract 5x from both sides.

-1x+8=-3

Subtract 8 from both sides to isolate the variable.

-1x=-11

Divide both sides by -1 to solve for x.

x=11

Plug in 11 for x into m∠A=(4x+8)=(4(11)+8)=(44+8)=52.

4 0
3 years ago
ANSWER ASAP
Alexxx [7]

Answer:

8589 cubic meters

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7 0
3 years ago
Quiz
Harman [31]

Answer:

h=-6 k=-30

Step-by-step explanation:

y=x^2+12x+6

\mathrm{The\:vertex\:of\:an\:up-down\:facing\:parabola\:of\:the\:form}\:y=ax^2+bx+c\:\mathrm{is}\:x_v=-\frac{b}{2a}

a=1,\:b=12,\:c=6

x_v=-\frac{b}{2a}

x_v=-\frac{12}{2\cdot \:1}\\

x_v=-6\\

\mathrm{Plug\:in}\:\:x_v=-6\:\mathrm{to\:find\:the}\:y_v\:\mathrm{value}

y_v=\left(-6\right)^2+12\left(-6\right)+6\\y_v=-30\\\left(-6,\:-30\right)

3 0
3 years ago
mary went to her local Zoo where 55% of it's exhibit feature reptiles if the zoo features 20 exhibits in total how many of the z
IceJOKER [234]
Hello!

To find this you have to find what 55% of 20 is

You can do this by doing 20 * 0.55

0.55 is 55% as a decimal

This gives us the answer of 11

Hope this helps!
8 0
3 years ago
Read 2 more answers
How do i find the are and perimeter of the composite figure?
sineoko [7]

Answer:

perimeter :

4+10+4+ (pi * radius) .........."radius =5"

area:

(10*4)+(0.5 * pi * r square)

7 0
3 years ago
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