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2 years ago

What's the answer to this math problem 4 = -0.8n

Mathematics

1 answer:

Montano1993 [528]2 years ago

6 0

To isolate n you need to divide to undo the multiplication

4=-0.8n
--- -----
-0.8 -0.8

-5=n

I hope I've helped!

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Tony wants to purchase a baseball glove for $14.96, a baseball bat for $19.87, and a baseball for $5.37. He figured out that he

eimsori [14]

To solve this, first we calculate all the total cost of the items that is:

total cost = $14.96 + $19.87 + $5.37

total cost = $40.20

So we see that the actual cost is similar with the estimate so his calculation is reasonable.

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2 years ago

The boys had 5 4 6 gallons of water to share throughout the day. James drank 1 1 3 5 6 1 2 gallons and Simon drank 2 3 gallon. H

dsp73

Answer:

$1\frac{1}{3}$

Step-by-step explanation:

Total Volume of Water = $5\frac{4}{6}$

Volume drunk by James = $1\frac{1}{3}$

Volume drunk by Simon = $\frac{2}{3}$

Volume drunk by Matthew = $1\frac{1}{2}$

Volume drunk by Gilbert = $\frac{5}{6}$

Total Volume Drunk (i.e. The Sum) = $1\frac{1}{3} + \frac{2}{3} + 1\frac{1}{2} +\frac{5}{6}=\frac{13}{3}$

Volume of water Left = Total Volume of Water-Total Volume Drunk

= $5\frac{4}{6}-\frac{13}{3} =\frac{4}{3}=1\frac{1}{3}$

3 0

3 years ago

Read 2 more answers

5x+12=-18<br> what is the value of x ?

Morgarella [4.7K]

X = - 6 :)
i calculated it

7 0

3 years ago

Read 2 more answers

dangina [55]

Answer:

$3w+10>2w+15$

Step-by-step explanation:

If Jerry initially releases 10 videos a week and creates an additional 3 each week, he will create a total of $3w+10$ videos, where $w$ is the number of weeks. If Martin initially releases 15 videos a week and creates an additional 2 each week, he will create a total of $2w+10$ videos, since $w$ is maintained. Therefore, the inequality $\fbox{$3w+10>2w+15$}$ can be used to find who creates more videos, where $w$ is the number of weeks.

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2 years ago

A polyhedron has 8 vertices and 14 edges. How many faces must it have?

Scorpion4ik [409]

We know that

The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two

V - E + F = 2
clear F
F=2-V+E

in this problem
V=8
E=14
F=?
so
F=2-8+14
F=8

the answer is
8 faces

7 0

2 years ago