4 years ago

How to multiply matrixes

Mathematics

1 answer:

horsena [70]4 years ago

4 0

hope it helps you!!!!!!

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Five times the sum of a number and 3 is 35. Find the number.

natta225 [31]

Answer:

Step-by-step explanation:

Let the required number be x.

Since, Five times the sum of a number and 3 is 35.

$5(x + 3) = 35 \\ \\ x + 3 = \frac{35}{5} \\ \\ x + 3 = 7 \\ \\ x = 7 - 3 \\ \\ x = 4$

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3 years ago

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What is the perimeter of a rectangle with a length of 23 mm and a width of 26mm

NISA [10]

Answer:98mm

Step-by-step explanation:

You add the length and width together and then multiply by 2

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3 years ago

A jar holds blue and green marbles. There are 57 blue marbles in the jar. There are 23 fewer green marbles than blue marbles in

NeTakaya

Answer:

there are 34 green marbles

there are 91 total marbles

Step-by-step explanation:

57 - 23 = 34

57 + 34 = 91

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3 years ago

Bianca wrote the steps for her solution to the equation 2.3 + 8(1.3x – 4.75) = 629.9. She left out the description for the last

ryzh [129]

I believe the correct answer from the choices listed above is the last option. THe missing step of her solution would be the statement "<span>Divide both sides of the equation by 10.4." Hope this answers the question. Have a nice day.</span>

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3 years ago

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Please help me with this one... will give brainliest

Dafna1 [17]

Answer:

110

Step-by-step explanation:

Formula for SA of a rectangular prism:

SA = 2lh + 2lw + 2wh

Given dimensions:

l = 1

w = 7

h = 6

Simply plug in these given dimensions into the SA formula to get the answer

SA = 2lh + 2lw + 2wh

Substitute given variables

SA = 2(1)(6) + 2(7)(1) + 2(6)(7)

* Multiply parentheses that are next to each other *

SA = 2(6) + 2(7) + 2(42)

* Multiply again *

SA = 12 + 14 + 84

*add*

SA = 110

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3 years ago