3 years ago

PLS HELP WILL MARK BRAINLEIST

Mathematics

2 answers:

Flura [38]3 years ago

6 0

Answer:

Step-by-step explanation:

What does the first question say

Alona [7]3 years ago

4 0

Can you please tell me what the first question says? i can read it, its too dark

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Plssssssssssss Solve for x: <br><br> -(2/5)x + 4 20<br> c. x -20

Mice21 [21]

Answer:

Step-by-step explanation:

412

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3 years ago

100% De

Gemiola [76]

Answer:

$1.75 because if u add $3.50 + $1.75 u get $5.25 subtract that from $7.00 u get $1.75

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3 years ago

Read 2 more answers

Pumps A, B, and C operate at their respective constant rates. Pumps A and B, operating simultaneously, can fill a certain tank i

jeka94

Let $a,b,c$ be the time it takes for pumps A, B, and C (respectively) to fill 1 tank. Then

$\begin{cases}\dfrac1a+\dfrac1b=\dfrac1{\frac65}=\dfrac56\\\\\dfrac1a+\dfrac1c=\dfrac1{\frac32}=\dfrac23\\\\\dfrac1b+\dfrac1c=\dfrac12\end{cases}$

Now,

$\left(\dfrac1a+\dfrac1b\right)-\left(\dfrac1a+\dfrac1c\right)=\dfrac56-\dfrac23\implies\dfrac1b-\dfrac1c=\dfrac16$

Then

$\left(\dfrac1b+\dfrac1c\right)+\left(\dfrac1b-\dfrac1c\right)=\dfrac12+\dfrac16\implies\dfrac2b=\dfrac23\implies b=3$

This means

$\dfrac1a+\dfrac13=\dfrac56\implies\dfrac1a=\dfrac12\implies a=2$

and

$\dfrac13+\dfrac1c=\dfrac12\implies\dfrac1c=\dfrac16\implies c=6$

Working together, all 3 pumps would operate at a rate of

$\dfrac1a+\dfrac1b+\dfrac1c=1$

or 1 tank in 1 hour, so the answer is D.

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3 years ago

297 is the sum of F and 211 write equation (IXL)

Lelechka [254]

297 is the sum of F and 211

297 = f+211

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3 years ago

Calculate The mode of this set of numbers 2,5,1,6,3,8,5,9,2,4,7

koban [17]

The mode is 5 & 2 because they both appear the most and the same amount of times that’s why they’re both the mode.

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3 years ago

PLS HELP WILL MARK BRAINLEIST​

PLS HELP WILL MARK BRAINLEIST