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2 years ago

Help..............................

Mathematics

1 answer:

nikdorinn [45]2 years ago

4 0

Answer:

2 hours

Step-by-step explanation:

Well you can make an equation for each

Lets “x” be hours

Jada, 28 +20x

Mai, 44 + 16x

So you can either make a table or a graph

I’m gonna make a table to make things easier

So lets do

jada: (0) 28 (1) 48 (2) 66 (3) 96

Mai: (0) 44 (1) 60 (2) 76 (3) 92

So we’re asked when is jada‘s service be cheaper

After 2 hours

jada <mai

whilst before

jada > mai

So 2 hours

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Hi i need help with these questions with distributive property pls help me:

zloy xaker [14]

Step-by-step explanation:

-12x+24

4x-24y

30-6q

1/2c-4

-15+3b

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7 0

3 years ago

Read 2 more answers

Solve 34=j−12<br> .<br> j=<br> Find the value of j

Semenov [28]

Answer:

j=46

Step-by-step explanation:

34=j-12

add 12 to 34 to isolate j

the answer to that is 46

j=46

6 0

3 years ago

A sporting goods store sells right-handed and left-handed baseball gloves. In one month, 12 gloves were sold for a total revenue

stepladder [879]

Answer:

$9$ right-handed gloves and $3$ left-handed gloves were sold.

Step-by-step explanation:

Given: In one month, $12$ gloves were sold for a total revenue of $\$561$ .

right-handed gloves cost $\$45$ and left-handed gloves cost $\$52$ .

To find: How much of each type of gloves did they sell?

Solution: Let they sell $x$ right-handed gloves, and $y$ left-handed gloves.

Now, cost of each right-handed gloves $=\$45$

cost of each left-handed gloves $=\$52$

Total revenue $=\$561$

So, we get

$45x+52y=561\:\:\:...(i)$

Also, in a month $12$ gloves were sold.

So, we get

$x+y=12\:\:\:...(ii)$

Now, from $(ii)$ we get, $x=12-y$ .

Putting $x=12-y$ in equation $(i)$ , we get

$45(12-y)+52y=561$

$\implies 540-45y+52y=561$

$\implies7y=561-540$

$\implies7y=21$

$\implies y=\frac{21}{7}$

$\implies y=3$

Now, putting $y=3$ in equation $(ii)$ , we get

$x+3=12$

$\implies x=12-3$

$\implies x=9$

Hence, $9$ right-handed gloves and $3$ left-handed gloves were sold.

7 0

3 years ago

On average, a commercial airplane burns about 3.9 × 10³ mL of gasoline per second. There can be as many as 5.1 × 10³ airplanes i

motikmotik

3.9 x 5.1 = 19.89

10^3 x 10^3 = 10^6

19.89 x 10^6

move decimal point

1.989 x 10^7

4 0

3 years ago

Two triangles have the same heights. One triangle has a base length that is twice the base length of the other triangle. Are the

djyliett [7]

Answer:

Yes

Step-by-step explanation:

The formula for area of a triangle is A = (1/2)bh,

For the first triangle we can leave it in general terms, so it's area is

A = (1/2)bh, depending on what b and h are, but it doesn't matter here...

The second triangle has base that is twice the other triangles base. Bases being multiples of each other is the definition of being proportional so the bases are proportional, an the area of the second triangle is

A = (1/2)(2b)h, which simplifies to

A = bh

Comparing the 2 areas, you can see that one has a multiplier of (1/2), so their areas are proportional

3 0

3 years ago