3 years ago

Can someone help me with this please

Mathematics

1 answer:

kiruha [24]3 years ago

3 0

Answer:

Step-by-step explanation:

Answer is 30

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There are mangoes and oranges in a basket in the ratio 7: 11. If the total number of fruits is 720, then how many mangoes are th

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Answer:

280 mangoes

Step-by-step explanation:

sum the parts of the ratio, 7 + 11 = 18 parts

Divide the total by 18 to find the value of one part of the ratio.

720 ÷ 18 = 40 ← value of 1 part of the ratio , then

7 × 40 = 280 ← number of mangoes

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Multiply 35×40 what equals

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When you multiply 35 x 40 = 1400

:)

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4 years ago

Given a function f(x)=|x+1|-|x -2|

White raven [17]

Answer:

Step-by-step explanation:

$f(x)=/x+1/-/x-2/\\a=/x+1/-/x-2/\\\text{square both sides}\\a^{2}={(x+1)}^{2}+{(x-2)}^{2}-2(x+1)(x-2)\\a^{2}=x^{2}+2x+1+x^{2}-4x+4-2x^{2}+2x+4\\a^{2}=9\\a=\sqrt{9}\\a=+3\text{ or }-3$

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Can someone help me with this please ​

Can someone help me with this please