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ANTONII [103]
3 years ago
12

HELP HELP HELP HELP HELP

Mathematics
2 answers:
Harman [31]3 years ago
8 0
B
I need 20 characters lol
vekshin13 years ago
7 0

Answer:

If you look at the numbers in the second matrix, you can see that they are both four times the corresponding numbers in the first matrix.

This means that correct answer is B, the numbers were multiplied by the scalar 4.

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Rearranging formulae:
bazaltina [42]

Answer:

1. d/a+c=d

2. (m+21)/5=n

3. (1/2+2q)*4=p or 2+8q=p

4. (p-2a)/2pi=r

5. {[(5c+1)/2]+c}/3=a

7 0
3 years ago
Read 2 more answers
The height of a right cylinder is 3 times the radius of the base. The volume of the cylinder is 241 cubic units.
kifflom [539]

Answer: 6 units

Step-by-step explanation:

8 0
3 years ago
A mistake was made in mixing the lemonade—<br> PLEASE HELP!!
beks73 [17]

Answer:

Part A:

4 + x = y

0.5*4 + 1*x = 0.7*y

x = 8/3\ quarts\ of\ 100\%\ solution

y = 20/3\ quarts\ of\ 70\%\ solution

Part B:

x + y = 10

2x + 3y = 23

x = 7 and y = 3

Step-by-step explanation:

Part A:

The inicial concentration of the lemonade is 50%, and the volume is 4 quarts, and we will add x quarts of a lemonade with a concentration of 100%, so the total volume will be y, and the concentration will be 0.7, so we have that:

4 + x = y

0.5*4 + 1*x = 0.7*y

Using the value of y from the first equation in the second one, we have:

2 + x = 0.7*(4 + x)

2 + x = 2.8 + 0.7x

0.3x = 0.8

x = 8/3\ quarts

y = 4 + 8/3 = 20/3\ quarts

Part B:

If he shoots a total of ten targets, we can write the equation:

x + y = 10

Each stationary target is 2 points, and each moving target is 3 points, so if the total points is 23, we have:

2x + 3y = 23

If we subtract the second equation by two times the first one, we have:

2x + 3y - 2*(x + y) = 23 - 2*10

2x + 3y - 2x - 2y = 23 - 20

y = 3

x + 3 = 10 ⇒ x = 7

4 0
3 years ago
+12&lt;16<br> Please with steps :)
mixas84 [53]

Answer:

0,1,2,3

Step-by-step explanation:

6 0
2 years ago
What is 7.25 in word form
Vikentia [17]

Answer: seven and twenty-five hundredths


Step-by-step explanation:

just need to know how to say it

6 0
3 years ago
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