Rosita compró dos cuartos de caramelos y quiere regalar a su hermano una caja de chocolates que tenga el mismo peso cuál caja debe regalarle un tercio un medio dos quintos o tres octavos​

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step-by-step explanation:

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w