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amid [387]
3 years ago
13

Explain how to add 678 + 303 using mental math

Mathematics
1 answer:
zloy xaker [14]3 years ago
4 0

Answer:

You add it in your mind.

Step-by-step explanation:


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Which equation is true when m = 4?
Luba_88 [7]
The correct answer is A and B because if you replace the m's with 4 than you do get the answer at the end of the equation.  Hope this helps.
4 0
3 years ago
5b + 7a + 15 - a + 2b - 10
Margarita [4]

Answer: i think its  7b+7a+15 - a - 10 and 7(8j + 5) -12

Step-by-step explanation:

7 0
3 years ago
Which equation represents a line that passes through (2,-1/2<br>and has a slope of 3?​
erma4kov [3.2K]

Answer:

y + 0.5 = 3(x - 2)

y + 0.5 = 3x - 6

y = 3x - 6.5

Step-by-step explanation:

8 0
3 years ago
In what time will Rs. 5600 amount to Rs. 6720 at 8% per annum?​
Leona [35]

Answer: 2 years

Step-by-step explanation:

If Interest= Principal x rate x time/100; then time is (100 × Interest)/(Principal × Rate)

From the question, old Principal is 5600, new principal =6720, the difference is the interest accrued.

Interest = 6720 - 5600 = Rs 1120

Rate = 8% = 8 ÷ 100 = 0.08

Time = x

Then, slot the values into the formula

Time= 100 x 1120 / 6720 x 8

= 112000/53760

=2.08

Time= 2years

I hope this helps

8 0
4 years ago
A patient is to take 4 2/3 tablespoons of medicine per day in 4 equally divided doses. How much medicine is to be taken in each
anygoal [31]

Answer:

1 1/6

Step-by-step explanation:

4 2/3 ÷ 4

Convert the mixed number into an improper fraction:

4 2/3 = 14/3

14/3 ÷ 4

14/3 ÷ 4/1

Use cdf (copy dot flip)

14/3 × 1/4

14 × 1 / 3 × 4

14/12

Convert improper fraction into a mixed number:

14/12 = 1 2/12

1 1/6

6 0
3 years ago
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