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4 years ago

A 4-pack of batteries costs $5.16. At this price, what is the cost of one battery?

Mathematics

1 answer:

antiseptic1488 [7]4 years ago

8 0

Answer:

$1.29

Step-by-step explanation:

5.16 divided by 4

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67. If mn + p = m + 3n, what is the value of m when

FromTheMoon [43]

Answer:

Step-by-step explanation:

mn + p = m + 3n, n = 4 and p = 6

m(4)+6=m+3(4)

4m+6=m+12

4m=m+6

3m=6

m=2

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3 years ago

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Type the expression that results from the following series of steps: Start with x and add 3.

Lera25 [3.4K]

I’m assuming it would just be x+3

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3 years ago

Algebra help please! Please explain by showing steps if you can, thank you!

ioda

4)input:5,6
output: 24,29
n+2

5) input : 1,2,3,4
output : -2,-4,-6,-8,-10,-12
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4 years ago

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What is 12 divided by 220

DanielleElmas [232]

Answer:

0.0545454545455

Step-by-step explanation:

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4 years ago

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Please help me with this problem

My name is Ann [436]

Answer:

$6A- 8B = \left[\begin{array}{ccc}56&50&-14\\-126&92&62\\-78&26&2\end{array}\right]$

Option A is correct.

Step-by-step explanation:

$A=\left[\begin{array}{ccc}-4&-1&-9\\-9&6&9\\-1&-1&3\end{array}\right] \\B=\left[\begin{array}{ccc}-10&-7&-5\\9&-7&-1\\9&-4&2\end{array}\right]$

We need to find 6A - 8B

Multiply matrix A with 6 and matrix B with 8 and then subtract 6A - 8B

$6A=\left[\begin{array}{ccc}-24&-6&-54\\-54&36&54\\-6&-6&18\end{array}\right] \\8B=\left[\begin{array}{ccc}-80&-56&-40\\72&-56&-8\\72&-32&16\end{array}\right]\\6A - 8B =\left[\begin{array}{ccc}-24-(-80)&-6-(-56)&-54-(-40)\\-54-(72)&36-(-56)&54-(-8)\\-6-(72)&-6-(-32)&18-(16)\end{array}\right] \\6A - 8B =\left[\begin{array}{ccc}-24+80&-6+56&-54+40\\-54-72&36+56&54+8\\-6-72&-6+32&18-16\end{array}\right] \\6A- 8B = \left[\begin{array}{ccc}56&50&-14\\-126&92&62\\-78&26&2\end{array}\right]$

So, $6A- 8B = \left[\begin{array}{ccc}56&50&-14\\-126&92&62\\-78&26&2\end{array}\right]$

Option A is correct.

3 0

3 years ago