Answer:
Step-by-step explanation:
step 1
Find the length side AB
In the right triangle ABD
we have
substitute
step 2
Find the length side BD
In the right triangle ABD
we have
substitute
step 3
Find the length side BC
In the right triangle ABC
we know that
BC=AB -----> is an 45°-90°-45° triangle
therefore
step 4
Find the length side CD
we know that
substitute the values
Answer:
10 dollars
Step-by-step explanation:
- $3 + $7 = $10
I hope this helps!
Answer:
-5.90 = y
Step-by-step explanation:
12(5 +2y) = 4y -( 5 - 9y)
1. Distribute
60 + 24y = 4y -5 + 9y
2. Add like terms
60 + 24y = -5 + 13y
3. Add 5 on both sides
60 + 24y +5 = -5 + 13y +5
65 + 24y = 13y
4. Subtract 24y on both sides
65 + 24y -24y = 13y -24y
65 = -11y
5. Divide -11 on both sides
65/-11 = -11y/-11
-5.90 = y
Answer:
13
Step-by-step explanation:
12×7 = 84,
so the scale ratio is 1/7
now 91×1/7
= 91/7
= 13