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allochka39001 [22]

2 years ago

11

Mr johnson sells erasers for 3 dollars each he sold 96 erasers last week and he sold 204 erasers this week about how many more m

oney did he make this week

1 answer:

elena-14-01-66 [18.8K]2 years ago

7 0

$324 more this week. (204*3) - (96*3)

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densk [106]

Answer:

£30

Step-by-step explanation:

Gavyn has £18 more than Alex

—› G - A = £18

—› 4u - 1u = 3u = £18

1u = £18 ÷ 3

= £6

total units = 4 + 1 = 5

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I need help on this question

77julia77 [94]

Answer:

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Step-by-step explanation:

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2 years ago

What are two decimals that can be rounded to 2.5

PIT_PIT [208]

2.6 and 2.4. they are the decimals next to 2.5

5 0

3 years ago

for v= 4i - 5j, find unit vector u in the direction of v, and write your answer as a linear combination of the standard unit vec

umka21 [38]

Answer:

a. $u=\frac{4\sqrt{41}i }{41}-\frac{5\sqrt{41}j}{41}$

Step-by-step explanation:

The given vector is v= 4i - 5j

The magnitude of this vector is;

$|v|=\sqrt{(-4)^2+(-5)^2}$

$|v|=\sqrt{16+25}$

$|v|=\sqrt{41}$

The unit vector u in the direction of v is;

$u=\frac{v}{|v|}$

$u=\frac{4i - 5j}{\sqrt{41}}$

$u=\frac{4i }{\sqrt{41}}-\frac{5j}{\sqrt{41}}$

We rationalize to get

$u=\frac{4\sqrt{41}i }{41}-\frac{5\sqrt{41}j}{41}$

4 0

3 years ago

Read 2 more answers