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8_murik_8 [283]
3 years ago
9

(7a^2-3a)-(5a^2-5a) subtraction!

Mathematics
1 answer:
inn [45]3 years ago
8 0

Answer:

Ur dad left thats why its subtraction !!!

Step-by-step explanation:

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There are two red jars of marbles and one blue jar of marbles jars of a certain color have the same number of marbles in them. T
satela [25.4K]
We can set up an equation to solve this problem.  I am setting the number of marbles in a red jar to R.

R + R + R - 16 = 41

We solve this by adding 16 to both sides and combining all of the R terms..  This gives us:

3R = 57

We can finish this problem by dividing both sides by 3.

R = 19.  So, there are 19 marbles in a red jar.

We can easily figure out how many marbles are in a blue jar by subtracting the total amount of marbles in 2 red jars from the total amount of marbles.  I am setting the amount of marbles in a blue jar to B.

41 - 19*2 = B

B = 3

So, there are 3 marbles in a blue jar and 19 marbles in a red jar.



7 0
3 years ago
A x 4 = E
lana [24]
A * 4 = E........A = E / 4
B / 4 = E........B = 4E
C + 4 = E......C = E - 4
D - 4 = E.......D = E + 4

A + B + C + D = 100
(E/4) + (4E) + (E - 4) + (E + 4) = 100
E/4 + 6E = 100 ....multiply by 4
E + 24E = 400
25E = 400
E = 400/25
E = 16 <===


7 0
3 years ago
Place the numbers in order from greatest to least.90.9890.08990.989.8990
padilas [110]

EXPLANATION:

The decimal number that is greater is the one with the largest integer part. If they have the same integer part, the first different decimal place is compared.

Now we are going to order the numbers of the exercise,

The correct order is:

-90.98

-90.9

-90.089

-90

-89.89

6 0
1 year ago
A farmer planted 70 packets of lettuce and 110 packets of pumpkin
storchak [24]

Answer:

7:11

Step-by-step explanation:

You place the numbers in the order given.

70:110

Then reduce it to the lowest term. In this case by 10.

70 ÷10=7

110÷10=11Therefore, the answe is

7:11

6 0
3 years ago
Read 2 more answers
Please help me on this problem​
lara [203]

Answer:

The first one?

Step-by-step explanation:

sorry if im wrong

7 0
3 years ago
Read 2 more answers
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