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mars1129 [50]
2 years ago
6

Find the unknown value

Mathematics
1 answer:
Law Incorporation [45]2 years ago
4 0
You have to cross multiply
7x3=21
21 divided by 6 = 3.5 or 3 1/2
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Estimate the difference of 621 - 267<br> by rounding to the nearest hundred.
dimulka [17.4K]

Answer:

300

Step-by-step explanation:

621 rounds to 600 because 21 is smaller than 50. 267 round to 300 since 67 is bigger than 50.

600-300=300

5 0
2 years ago
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What is the value of x? (Use only the digits 0 - 9 and the decimal point, if needed, to write the number.)
GREYUIT [131]

Answer:

5.34

Step-by-step explanation:

X + 12.66 = 18

-12.66 -12.66

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2x + y = -4<br> 2x + 3y = 4
kirill115 [55]

Answer: x=4 ; y=<u> -4</u>

                            3

Step-by-step explanation:

2x + y = -4 .(-3)

2x + 3y = 4

-6x-3y=12

<u>2x + 3y = 4</u>

4x=16

x= <u>16</u>

    4

x=4

2x + 3y = 4

2.4+3y=4

8+3y=4

3y= -8+4

y=<u> -4</u>

   3

7 0
2 years ago
The two shapes are similar solve for y
Irina18 [472]
I don’t why it kinda blurry for me.
3 0
2 years ago
Here is a triangle with the height on the side of the triangle. Use the formula: (1/2)*(Base)*(Height) to find the area of the t
jasenka [17]

<em>(If one square on the graph = one centimeter)</em>

<u>b = 10cm</u>

<u>b = 10cmh = 10cm</u>

Area:

=  \frac{1}{2}  \times b \times \: h

=  \frac{1}{2 }  \times 10 \times 10

=  \frac{1}{2}  \times 100

= 50 {cm}^{2}

3 0
2 years ago
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