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ipn [44]
3 years ago
5

Yesterday it was -14°F in Nome, Alaska. At the same time it was 43°F in Austin, Texas. What was the DIFFERENCE in the temperatur

es of these two cities?
Mathematics
1 answer:
Allisa [31]3 years ago
3 0

Answer:

57°F differences

Step-by-step explanation:

-14+57= 43

43-57= -14

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Eli has saved $8 more than 1/3 of Angela's savings.If they each save $10 more Eli will have saved &4 more than Angela's savi
statuscvo [17]

Answer:

Eli has saved $10

Step-by-step explanation:

Let us use the first letters of their names to represent them.

A for Angela and E for ELi

So, from the first statement, we can write out an equation: E = \frac{1}{3}A + 8, that is, <em>one-third of Angela's savings + $8 will give us Eli's savings</em>

From the second statement, we can write out: E + 10 = (A + 10) + 4 which means that <em>if $10 is added to both their savings, Eli will still have $4 more than Angela.</em>

So, we can solve both equations;

Equation 1: E = \frac{1}{3}A + 8

Equation 2: E + 10 = (A + 10) + 4; which can be rewritten as E + 10 = A + 14

and then E = A + 4

The two equations (in bold), can then be solved simultaneously.

Let us carry out this operation to <u>eliminate the E:</u> Subtract equation 1 from equation 2, so that;

A + 4 - ( \frac{1}{3}A + 8) = E - E

\frac{2}{3}A - 4 = 0

\frac{2}{3}A = 4

A = 4 × \frac{3}{2} = 6

So, if A is 6, and E = A + 4 (from equation 2, that means that E = 6 + 4 = 10

So, Eli has saved $10, while Angela has saved $6.

If we check what was said in the question about their savings, which is what we have represented using the equations, the answers can be confirmed.

3 0
3 years ago
Read 2 more answers
Pls help its not that hard, im in 7th grade
Kamila [148]

i think it's 20 but i'm not that sure

5 0
3 years ago
Read 2 more answers
What is the value of x in trapezoid ABCD?<br>x=15<br>x=20<br>x=45<br>x=60<br>​
Zepler [3.9K]

Answer:

I think its x=15

Step-by-step explanation:

7 0
3 years ago
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The time it takes to cover the distance between two cities by car varies inversely with the speed of the car. The trip takes 5 h
kogti [31]

v=d/t

44=d/5

d=220 mile

v=220/11

v=20 mph

7 0
2 years ago
−2x = 4y + 6 2(2y + 3) = 3x − 5 What is the solution (x, y) to the system of equations above
Wewaii [24]

Answer:

(1;-2)

Step-by-step explanation:

x=-2y-3

2(2y+3)=-6y-9-5

10y=-20

y=-2

x=4-3=1

6 0
3 years ago
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