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2 years ago

WHOEVER ANSWERS CORRECTLY I'LL GIVE BRAINLIEST!!!!!!!!!!!

Mathematics

2 answers:

Likurg_2 [28]2 years ago

8 0

Answer:

answer what ?

Step-by-step explanation:

grigory [225]2 years ago

7 0

Answer:

Please post your question

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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

elena-14-01-66 [18.8K]

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

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3 years ago

Given the vectors, a=3i+4j, b=-2i+5j, c=10i-j, d=-1/3i+5/2j, find -0.4a-0.3b+0.2d=?

sveta [45]

Answer:

$-\frac{2}{3}i - \frac{13}{5}j$

Step-by-step explanation:

-0.4(3i + 4i) - 0.3(-2i + 5j) + 0.2(- $\frac{1}{3}i$ + $\frac{5}{2}$ j)

-1.2i - 1.6j + 0.6i - 1.5j - $\frac{0.2}{3}$ i + 0.5j

Converting to fraction form;

$-\frac{6}{5}i + \frac{3}{5}i - \frac{1}{15}i - \frac{8}{5}j - \frac{3}{2}j + \frac{1}{2} j$

Solving the i part;

$\frac{-18i + 9i - i}{15}$ = $-\frac{2}{3}i$

Solving the j part;

$\frac{-16j-15j+5j}{10} = -\frac{13}{5}$ j

So -0.4a - o.3b + 0.2d = $-\frac{2}{3}i$ - $\frac{13}{5}j$

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3 years ago

whe value of two rational number is 2,if one of the rational number is 1/7 so what is the value of other brainly

baherus [9]

Answer:

13/7

Step-by-step explanation:

X + 1/7 = 2

X = 2- 1/7

x = 13/7

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2 years ago

Answer this! 18 divides x

Darya [45]

this makes no sense so maybe try something better

3 0

2 years ago

When is it useful to guess check to solve mathematical problems?

Ad libitum [116K]

Answer:

often one of the first strategies that students learn when solving problems. This is a flexible strategy that is often used as a starting point when solving a problem, and can be used as a safety net, when no other strategy is immediately obvious.

Step-by-step explanation:

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3 years ago