The number a is a, which is three times less than the number B. the formula for the number B is () A. 3a-bB. a÷3-bC. （ a+b ）÷3D. （ a-b ）÷3

The number a is a, which is three times less than the number B. the formula for the number B is () A. 3a-bB. a÷3-bC. （ a+b ）÷3D. （ a-b ）÷3

(a + b) △ 3; hence: C

The number of a is three times that of B, B is a, a is () a.3a B
The number a is three times of the number B, the number B is a, and the number a is () a.3a B.A △ 3c.2a

A

The number a is three times less than the number B. the number B is ()
The number a is three times less than the number B. the number B is ()
Another question: the bottom of a triangle is 7.8 cm. The height is 6cm, and the area of a parallelogram with the same base and height is () square centimeter.

One third a minus B

The number a is a, which is less than 4 times of the number B. is the formula 4a-b right or wrong
There is also a question, using the "rounding" method to round up to 3.41 three decimal places, the range is () to ()

The formula for B is: (a + b) △ 4
3.410~3.414

The number a is a, which is less than 7 / 5 of the number B. the formula for the number B is

Let B be X
Then according to the conditions
5/7X-B=A
5/7x=A+B
X=(A+B)*5/7
The formula for B is (a + b) * 5 / 7

Three fifths of a is 120. 25% of a is 16 less than B. what's B?

3 / 5 of a is 120, so the value of a is 120 divided by 3 / 5 = 200, 25% of a = 50, 16 less than B. so the value of B is 66

1 / 3 of the number a is less than 2 of the number B. 1 / 2 of the number a is 4 / 5 of the number B. what is the sum of the number a and the number B

A 48 / 7
B 30 / 7
And 78 out of 7

13 of the number a is less than 2 of the number B. 12 of the number a is 45 of the number B. the sum of the number a and the number B is______ ．

Let a number be X. from the meaning of the question, we can get: 12x △ 45-13x = 258x − 13X = 2724x = 2, x = 487; 12x △ 45 = 12 × 487 △ 45 = 307; 487 + 307 = 787; so the answer is: 787

13 of the number a is less than 2 of the number B. 12 of the number a is 45 of the number B. the sum of the number a and the number B is______ ．

Let a number be X. from the meaning of the question, we can get: 12x △ 45-13x = 258x − 13X = 2724x = 2, x = 487; 12x △ 45 = 12 × 487 △ 45 = 307; 487 + 307 = 787; so the answer is: 787

The number of a is 50% less than that of B. the ratio of a to B is ()
A. 2：5B. 5：3C. 1：2D. 3：5

(1-50%): 1, = 0.5:1, = 1:2