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4 years ago

What is the missing fact in this fact family 7+5 =12 , 12-5=7 , 12-7=5

Mathematics

2 answers:

alexandr1967 [171]4 years ago

8 0

Ima not sure bout my answer but maybe it might be 5+7=12

n200080 [17]4 years ago

5 0

Missing fact is 13 seats are empty

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Which equation can be used to solve

dmitriy555 [2]

Answer:

Value of x1 = 10 and x2 = -3

Step-by-step explanation:

$when \: we \: multiply \: the \: above \: matrices \\ we \: get \\ 2x1 + 6x2 = 2 \: \: \: \: and \\ 0x1 + 1x2 = - 3 \\ then \: \: x2 = - 3 \\ on \: substituting \: x2 = - 3 \:\\ in \: first \: equation \: \\ 2x1 + 6( - 3) = 2 \\ 2x1 - 18 = 2 \\ 2x1 = 20 \\ x1 = \frac{20}{2} \\ x1 = 10$

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THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION.

7 0

3 years ago

The area of a circle is 28.26 square feet. What is the circle's circumference?

Marina86 [1]

Reverse the formula of pi x r^2 = area to find r, the radius.
Then, use r in the formula 2pi x r to calculate the circumference.

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3 years ago

Item 16 Solve the equation. −4/9f=−3

juin [17]

The answer is f= $\frac{4}{27}$

4 0

3 years ago

Read 2 more answers

Evaluate the expression below for g = 77. 1.2g

Lera25 [3.4K]

Answer:

Step-by-step explanation:

This is easy, all we need to do is to multiply 1.2 by 77.

ANSWER: 92.4

I'm always happy to help :)

5 0

3 years ago

Read 2 more answers

PLEASE help me with this question and I WILL love you forever But yeah please help me with the question.And EXPLAIN in words how

Rufina [12.5K]

Well on this problem recall area of a rectangle is defined by:

A = lw our w = 1/6 and our l = (x + $\frac{2}{3}$ ) we have let 'x' represent our original length.
$(x + \frac{2}{3} )( \frac{1}{6} )= \frac{11}{72}$
$\frac{1}{6} x+ \frac{2}{18} = \frac{11}{72}$
12x + 8 = 11
12x = 11 - 8
12x = 3
x = $\frac{3}{12} = \frac{1}{4}$ So our original length is $\frac{1}{4}$

5 0

4 years ago