Answer:
hope it was helpful!! You are welcome to ask any question
Steps to solve:
25 = x + 19
~Subtract 19 to both sides
6 = x
Best of Luck!
Answer:
7,8,9
Step-by-step explanation:
192/8=24
X+(x+1)+(x+2)=24
3x+3=24
3x=21
x=7
so it’s 7,8,9
Answer:
137
Step-by-step explanation:
First start with what you know. The measure of the interior angles of a triangle total to
so 51 + 2x + x = 180, then 51 + 3x = 180, 3x = 129, so
x = 43, the exterior angle is on a straight line with x so
x + exterior angle = 180 [since they are supplementary], since x = 43 then
43 + e = 180, so e has to be 137
Answer:
The percentage increase in Jayana's postcard collection is 15%
Step-by-step explanation:
Jayana had 20 postcards last year
With 3 more postcards this year
From the given equation Quantity = Percent x Whole
Here;
Let P = Percent/100%
Quantity = Increment in postcard = 3 postcards
Whole = The total postcards from last year = 20 postcards
Hence,
3 postcards = P x 20 postcards
P = 3/20 = 0.15
Recall P = Percent/100%
∴ Percent = P x 100% = 0.15 x 100% = 15%
The percentage increase in Jayana's postcard collection is 15%