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2 years ago

12

Write the sentence as an equation. Let the variable x represent the number. Seven less than 3 times a number gives 14. The given

sentence written as an equation is (Type an equation using x as the variable.)

1 answer:

fomenos2 years ago

3 0

Answer:

3x-7=14

This the equation.

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If 8 girls brought a lunch box and 6 boys didnt what is the probability of a student bringing one.

Tatiana [17]

Answer:

43 percent

Step-by-step explanation:

6/14 ×100%

=0.248

=43%

first add up the total people, then substract the total of people to the people that didn't bring them, divide them then multiply it by 100%

3 0

3 years ago

The sun is 93,000,000 miles from Earth. What is the value of the 3 in the number 93,000,000

Lostsunrise [7]

Answer:

three million

Step-by-step explanation:

3 0

3 years ago

Find the volume of the parallelepiped with adjacent edges t = 3j – 4j – 6k, u = 3i – 7j – 7k and v = 5i + j + 3k.

Assoli18 [71]

Answer:

94 cubic units

Step-by-step explanation:

The volume of this parallelepiped (the product of area of its base and height) is equal to the absolute value of the scalar triple product $|\vec{t}\cdot (\vec{u}\times \vec{v})|$

Since

$\vec{t}=3\vec{i}-4\vec{j}-6\vec{k}=(3,-4,-6)\\ \\\vec{u}=3\vec{i}-7\vec{j}-7\vec{k}=(3,-7,-7)\\ \\\vec{v}=5\vec{i}+\vec{j}+3\vec{k}=(5,1,3)$

we have

$|\vec{t}\cdot (\vec{u}\times \vec{v})|=\left|\left|\begin{array}{ccc}3&-4&-6\\3&-7&-7\\5&1&3\end{array}\right|\right|=|3\cdot (-7)\cdot 3+(-4)\cdot (-7)\cdot 5+3\cdot 1\cdot (-6)-5\cdot (-7)\cdot (-6)-3\cdot (-7)\cdot 1-3\cdot (-4)\cdot 3|=|-63+140-18-210+21+36|=|-94|=94\ un^3.$

4 0

2 years ago

PLEASE ANWSER nnbbbcnjbcm

MArishka [77]

Answer:

I dont really know how to do this, but I think you have to multiply

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

I think of a number. When I add 12 and subtract 8, I get<br> 15. What is that number?

zheka24 [161]

Answer:

11?

Step-by-step explanation:

Hope I'm right! (:

3 0

2 years ago

Read 2 more answers