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2 years ago

How do you find a missing exponent? If the question is 2^3 x 2^5 = 2^?

Mathematics

1 answer:

kap26 [50]2 years ago

4 0

Answer:

2^3 X 2^5 = 2^8

when multiplying indices with the same base number just add the indices

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Q12 A driver sees this speed limit sign in France. The speed is in kilometres per hour

Ad libitum [116K]

Answer:

Step-by-step explanation: idk

7 0

3 years ago

Solve for a in the following equation 12am = 4.

Mila [183]

First, divide both sides by 12 to get am alone
am=1/3
Now, divide both sides by m to get a alone
a=1/3 / m

5 0

2 years ago

Read 2 more answers

I need helppppppppppppp

ohaa [14]

Simplify

4ax+12-3ax=25+3a

ax+12=25+3a

ax-3a=25-12

a(x-3)=13

5 0

2 years ago

A bag contains 105 red and blue marbles. The ratio of red to blue marbles is 2:5. How many red marbles are in the bag?

V125BC [204]

Answer:

30 red marbles

Step-by-step explanation:

If the ratio is 2 red marbles for every 5 blue marbles then you would add them together to find out how many marbles are in one group.

2+5=7

There are 7 marbles in each group.

Now we have to find out how many total groups there are by dividing the total amount of marbles by the amount in each group.

105÷7=15

There are 15 groups of 7 marbles.

Looking back at the ratio, we know that the 15 groups each have 2 red marbles and 5 blue marbles. So if there is 2 red marbles 15 times (2 marbles in 15 groups) we would multiply.

2×15=30

There are 30 red marbles.

I hope that makes sense.

5 0

3 years ago

Mary has 15 points with the total value of $1.75 if the coins are nickels and quarters how many of each kind are there

torisob [31]

Answer:

The number of nickel coins is 10 and the number of quarter coins is 5

Step-by-step explanation:

<u><em>The correct question is</em></u>

Mary has 15 coins with the total value of $1.75 if the coins are nickels and quarters how many of each kind are there

Let

x ----> the number of nickel coins

y ----> the number of quarter coins

Remember that

$1\ nickel=\$0.05$

$1\ quarter=\$0.25$

we know that

Mary has 15 coins

$x+y=15$ -----> equation A

The total value of the coins is $1.75

$0.05x+0.25y=1.75$ ----> equation B

Solve the system by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

The solution is the point (10,5)

therefore

The number of nickel coins is 10 and the number of quarter coins is 5

8 0

2 years ago