Good evening ,
<u><em>Answer:</em></u>
<h2>the regular price of the item is $80.</h2>
<u><em>Step-by-step explanation:</em></u>
Let p represent the regular price of the item.
p - p×(40/100) = 48 ⇌ p×(1 - 40/100) = 48 ⇌ p×(100/100 - 40/100) = 48
⇌ p×(60/100) = 48 ⇌ p = (480×100)/60 = 48 000/60 = 80.
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:)
Answer:
Jill did not change the symbol of inequality from minor (< ) to major (>) in the Step 4
Step-by-step explanation:
we have
step 1
Multiply by 12 both sides
step 2
Group terms
step 3
Combine like terms
step 4
Divide by -7 both sides
Remember that when you multiply an inequality by -1 the < symbol changes to the > symbol
so
Jill did not change the symbol of inequality from minor (< ) to major (>) in the Step 4
<u>Answer:</u>
-
It will take 1 week for both classmates to catch up with each other
- Each child has passed about 9 tests.
<u>Step-by-step explanation:</u>
<u>We know that:</u>
-
Q = 8 + 1(w)
- S = 4 + 5(w)
- Q = S
<u>Work:</u>
-
8 + w = 4 + 5w
- => 8 - 4 = -w + 5w
- => 4 = 4w
- => w = 1
<u>Hence, it will take 1 week for both classmates to catch up with each other. Now, let's substitute the value of w into the first equation to find how many tests have each child passed.</u>
-
Q = 8 + (w)
- => Q = 8 + 1
- => Q = 9
Hence, <u>each child has passed about 9 tests.</u>
Hoped this helped.