Step-by-step explanation:
<u>Step 1: Find the drop boxes</u>
The first drop box, the leftmost, is 3 since we multiply it again by three to get nine. Therefore both the first and second drop boxes are 3.
Answer: Both 3
There is another way to do this problem which is cross multiply
Answer:
x = 8.3
y = 20.3
Step-by-step explanation:
or
or
Double of 50 is 100, so 28*100=2800, now half of the answer is 2800/2=1400
Hope it helped
Answer:
2 21/40
Step-by-step explanation:
First, you take the fractions in the parenthesis and make the denominators alike by finding the least common multiple. Once you've done that you can add them together and then add the outer fraction. When adding the outer fraction, you need to make it into an improper fraction. I hope this helped! :)
Answer:
x = -2 , y = 4
Step-by-step explanation:
given:
5x + 2y = -2 <em>*4</em>
4x + 3y = 4 <em>*5</em>
Solving simultaneously,
20x + 8y = -8 ....eq 1
(-) 20x +15y = 20 ...eq 2
.............................................
-7y = -28
y = -28 / -7
y = 4
using equation 2,
20x +15(4) = 20
20x = -40
x = -2