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3 years ago

7cm10cm4cmThe area of the compound shape is 106cm.work out the size of x.

Mathematics

2 answers:

JulsSmile [24]3 years ago

6 0

answer=9

7x10=70cmxsquare

4(x)=4x

70+4x=106

4x=36

x=36/4

x=9

uranmaximum [27]3 years ago

5 0

Answer: 9cm

Step-by-step explanation:

$7x10=70cmx^{2}$

4(x)=4x

1.) 70+4x=106 (subtract 70 on both sides)

2.)4x=36 (divide 4 on both sides)

3.)x=9

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Tripp and Rico are two dogs. Tripp weighs exactly 35 pounds more than Rico. Together, they weigh exactly 49 pounds. How much doe

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Call the weights of the two dogs $t$ and $r$ .

We know that Tripp weights 35lbs more than Rico, or:
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We also know that the total weight of both dogs is 49lbs.:
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Now, by substitution:
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$2r+35-35=49-35$
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To check our work:
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