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3 years ago

7W + 3 = -4W - 85 a. -11b. 11c. 8d. -8

1 answer:

6 0

-8
Step 1) Subtract 3 from both sides of the equation
Step 2) Add 4W to both sides of the equation
Step 3) Divide both sides of the equation by the same factor

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1. Un examen de Matemáticas ha sido aprobado por 6/9 de los estudiantes. Al resto de los estudiantes le toca repetir el examen.

Eddi Din [679]

Answer:

15 students

Step-by-step explanation:

The fraction of students who will repeat the exam is:

$1-\frac{6}{9}$

= $\frac{9}{9} -\frac{6}{9} =\frac{3}{9}$

simplified is:

$\frac{1}{3}$

Extract this fraction of 45:

$45(\frac{1}{3} )=\frac{45}{3} =15$

Hope this helps

5 0

2 years ago

Daniel brother can eat 4 ice cream sandwiches every 30 minutes his brother can eat double that how many ice cream sandwiches wil

Snowcat [4.5K]

Answer:

3 minutes and 45 seconds

Step-by-step explanation:

His brother can eat 1 ice cream sandwich every 3 minutes and 45 seconds I found this out by dividing 30 by 8 then I got 3.75 then I converted .75 to 75% of 60 was 45 thus ending up with 3:45

8 0

4 years ago

A large cylindrical cooler is 2 (1 )/2 feet high and has a diameter of 1 1/2 feet. It is filled 3/4 high with water for athletes

Ivahew [28]

So.. if hmm check the picture below, the radius is half that diameter

thus $\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\qquad 
\begin{cases}
h=height\\
r=radius=\frac{diameter}{2}\\
----------\\
h=2\frac{1}{2}\to \cfrac{5}{2}\\
diameter=1\frac{1}{2}\to \cfrac{3}{2}\\
r=\cfrac{\frac{3}{2}}{2}\to \cfrac{3}{4}
\end{cases}\implies V=\pi \left( \cfrac{3}{4} \right)^2\cfrac{5}{2}
\\\\\\
V=\pi \cdot \cfrac{9}{16}\cdot \cfrac{5}{2}\impliedby \textit{how much is }\frac{3}{4}\textit{ of that?}
\\\\\\
\cfrac{3}{4}\left( \pi \cdot \cfrac{9}{16}\cdot \cfrac{5}{2} \right)$

simplify that away

now.. that's how much is in the cooler in cubic feet though, not in gallons

notice, our units were in feet, thus our volume is also in feet, just cubics

so. to know how many gallons, simply divide that by 231

$\bf \cfrac{\frac{3}{4}\left( \pi \cdot \frac{9}{16}\cdot \frac{5}{2} \right)}{231}\quad gallons$

4 0

4 years ago

Guys cqn you help me please

svp [43]

yan po answer

#CARRYONLEARNING

LOVE U ALL

5 0

2 years ago

Read 2 more answers

The art department is planning a trip to museum . The bus costs $100 plus $7 per student. A professor donated $50 to defray the

erastovalidia [21]

Bud $100 - $50 Donation = $50

17 Students at a $3 Profit per student gives you $51 covering the cost of the Bus and also covering the $7 cost per student.

6 0

3 years ago

7W + 3 = -4W - 85 a. -11b. 11c. 8d. -8​

7W + 3 = -4W - 85 a. -11b. 11c. 8d. -8