X - 8 = -10 What’s x

Mathematics

2 answers:

Over [174]3 years ago

7 0

Answer:

-2

Step-by-step explanation:

x-8=-10

x=-10+8

x=-2

densk [106]3 years ago

3 0

Answer:

x = -2

Step-by-step explanation:

x - 8 = -10

Since 8 is being subtracted from x, you need to undo that subtraction to end up with x alone. To undo a subtraction, you do the opposite operation which is addition. You must do the same operation to both sides of an equation.

Add 8 to both sides of the equation.

x - 8 + 8 = -10 + 8

x = -2

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Eva wants to make two pieces of pottery.She needs 3/5 pound of clay for one piece and 7/10 pound of clay for the other piece.She

marta [7]

Answer:

a) Eva will need 2 bags of clay to make both pieces of pottery.

b) She will have leftover $\frac{11}{10}$ pounds of clay.

Step-by-step explanation:

a) We have to find the total amount of clay, as she needs $\frac{3}{5}pound=P_{1}$ and $\frac{7}{10}pound=P_{2}$ , so $P_{1}+P_{2}= \frac{3}{5} +\frac{7}{10} =\frac{6+7}{10}=\frac{13}{10}pounds$ , is the total amount of clay. Then as we Know that one bag of clay has $\frac{4}{5} =\frac{8}{10} pounds$ , It isn´t enough, but with two bags $2*\frac{8}{10}=\frac{16}{10} pounds$ , It is enough clay.

b) She will have leftover $\frac{16}{10} -\frac{13}{10} =\frac{3}{10}pounds$ of the second bag, then we add the third one, so $\frac{3}{10} +\frac{8}{10} =\frac{11}{10}pounds$ are leftover.