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ankoles [38]
3 years ago
10

What is the value of y in the equation 2 + y = −3? -1 -5 1 5

Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
7 0
To do this subtract 2 from each side of the equation to get y = -5, so the value of y in this is -5. Hope this helps!
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A mother is 5 times as old as her daughter. In 6 years she will be 3 times as old as her daughter. How old is the mother and her
Serga [27]

Answer:

The mother is 30 and the daughter is 6

Step-by-step explanation:

When solving for this, you can derive the equations

x=5y and x+6= 3(y+6)

x= mother and y= Daughter

Solve the equations by substituting the first equation into the places of x in the second equation to get the value of x. Next, pug in the value of x and solve for y.

6 0
2 years ago
Please help please please
diamong [38]

Answer:

d

Step-by-step explanation:

there is only 4 of her ponies that are over 96 centimeters but it is not 40 percent but 27 percent because she has 14 ponies not 10 ponies

8 0
2 years ago
30 Points! please help!
SVEN [57.7K]

Answer:

18) 4 * 10 ^ -10

19) t ^ 9

Step-by-step explanation:

18. When multiplying in scientific notation, just multiply the regular numbers together and add the exponents for the tens.

So it'll be 40 * 10^-11

However, the beginning number should have the decimal right after the 4, not any place after (for example, it's 3.056, not 30.56 or 3056.)

To fix this, move the decimal place forward one space from 40. to 4.0, and add 1 to the -11 power.

So the answer is now 4 * 10^-10

19. When dividing exponents, if the base number is the same, you can divide. (Basically, you can not divide x^2 and y^3 because x and y aren't the same)

Since in this case it's t, you can divide.

Dividing exponents is simple: just subtract them.

14 - 5 = 9

so the answer is t ^ 9

3 0
3 years ago
Evaluate x2/y + x2/z , if x = 10, y = -5, and z = -2.
ch4aika [34]
X^2/y + x^2/z =
10^2/(-5) + 10^2/(-2) =
100/(-5) + 100/(-2) =
-20 - 50 =
-70
6 0
3 years ago
Read 2 more answers
Express 120 feet in yards​
Otrada [13]

Answer:

40 yards

Step-by-step explanation:

Yard=3 feet

120/3=40

Please mark brainliest and ask more questions if you need!

3 0
3 years ago
Read 2 more answers
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