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elixir [45]
3 years ago
5

3/5t−4−7/10t=−2 what the value of t

Mathematics
1 answer:
Marysya12 [62]3 years ago
8 0
Hello there.

<span>3/5t−4−7/10t=−2

t=-20</span>
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Tickets for a school play sold for $7.50 for each adult and $3.00 for each child. The total receipts for 118 tickets totaled $69
NeX [460]
X= number of adult tickets
y=number of child tickets.
we can suggest this system of equations: 
x+y=118                 ⇒x=118-y
7.5x+3y=696

we can solve this system of equations by substitution method:
7.5(118-y)+3y=696
885-7.5y+3y=696
-4.5y=-189
y=-189/-4.5
y=42

x=118-y
x=118-42
x=76

Answer: the number of adult tickets sold was 76. 
7 0
3 years ago
a radioactive substance has a half-life of 2 seconds. A scientist begins with a sample of 20 grams. How much of the substance re
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Answer:

1.25 g

Step-by-step explanation:

you start with 20g at 0 seconds.

divide by half after 2 seconds and you have 10g.

at 4 seconds you have 5g.

at 6 seconds you have 2.5g.

at 8 seconds you have 1.25g.

5 0
2 years ago
Find the distance from point A (4,2) to point B (9,7).
Nataliya [291]

Answer:

11

Step-by-step explanation:

3 0
3 years ago
The accounting at GEICO notices that the average claim might be larger than $1800, which was previously set as a true average cl
puteri [66]

Answer:

I’m not really sure

Step-by-step explanation:

Look at someone else’s answer

3 0
3 years ago
Someone help with this midpoint question please
Natali5045456 [20]

Answer: D) (2,0)

Step-by-step explanation:

These are your values.

(-2,4);(6,-4)

Remember this means;

(x_1,y_1);(x_2,y_2)

The formula for finding the midpoint of a segment is simple. Add both x's and y's and divide them by 2 separately. Or, if you like to follow formulas, here you go.

Let M be midpoint.

M=\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}

M=\frac{-2+6}{2},\frac{4+(-4)}{2}

M=\frac{4}{2} ,\frac{4-4}{2}

M=\frac{4}{2} ,\frac{0}{2}

M=2,0

3 0
3 years ago
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