3 years ago

What do you multiply together to get 7

Mathematics

2 answers:

velikii [3]3 years ago

4 0

3.5 x 2 could be multiplied together to get 7

julsineya [31]3 years ago

3 0

Answer:

There are many answers depending of which types of numbers you can choose from.

Whole numbers: 1 * 7

Integers: 1 * 7, -1 * (-7)

Rational numbers: Any two rational numbers whose product is 7 such as

3.5 * 2; 0.1 * 70, 14 * 0.5

Irrational numbers: any two rational numbers whose product is 7, such as sqrt(7) * sqrt(7).

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The Shinkansen, the fastest train in Japan, traveled 75 kilometers in 0.25 hours. What was its speed in kilometers per hour?

d1i1m1o1n [39]

Answer:

300 kilometers per hour

Step-by-step explanation:

See the step-by-step solution in the picture attached below.

I hope this answer will help you. Have a nice day !

8 0

3 years ago

Evaluate \dfrac{e}{4}+2f-3 4e +2f−3 when e=12e=12 and f=\dfrac12f= 21<br>

dusya [7]

Answer:

\frac{13+\left(-3\right)^2+4\left(-3\right)+1-\left(-10-\left(-6\right)\right)}{\frac{\left(4+5\right)}{\left(4^2-3^2\left(4-3\right)-8\right)}+12}=5

Step-by-step explanation:

7 0

4 years ago

The length of a rectangle is 7 centimeters greater than the width.

Lisa [10]

Answer:

length = 17cm, width = 10cm

Step-by-step explanation:

2L + 2w = 54

L = w + 7

Substitute:

2(w + 7) + 2w = 54

2w + 14 + 2w = 54

4w = 40

w = 10

L = 10 + 7 = 17

7 0

3 years ago

Evaluate each expression if a = 5, b = 6, C = 4, and d = 3.<br><br> a. 2ab + cd<br> b. abc

PolarNik [594]

Answer:

a(2ab+cd

(2×5×6)+(4×3)

60+12

b)abc

5×6×4

120

8 0

3 years ago

What is the inverse of the function? f(x) = 2x - 10?

gulaghasi [49]

Answer:

Step-by-step explanation:

Let $f(x)=y$

y=2x-10

Switch x and y,

x=2y-10

x+10=2y

(x/2)+5=y

So $f^{-1}(x)=\frac{x}{2}+5$

3 0

3 years ago