Answer: John has 52 marbles in his collection
Step-by-step explanation:
Step 1
LET The number of marbles in John's collection can be represented by x. The and the number of marbles in Erica collection can be represented as =4x+ 10
The total number of marbles in both collections is 270 such that the expression to solve the equation will be
JOHN + ERICA = 270marbles
X + 4X+ 10= 270
Step 2--- solving
X + 4X+ 10= 270
5X+ 10= 270
5X= 270-10
5X= 260
X= 260/5
=52
John has 52 marbles in his collection
Erica has 4x + 10 = 4x 52 + 10=218 marbles
Answer:
7:5 equals 1.4, so we need to multiply 1.4 and 4 and we get 5.6. The answer is 5.6
Answer:
34
Step-by-step explanation:
xzzee#^€^€€%^"$~~×
Answer:
Step-by-step explanation:
200ft (1mile/5,280ft) 60ft/1hr 200×60/5,280 = 2.27272727273
and round it to the2 decimal is 2.27
Hey there!!
perimeter of rectangle = 2 ( l + b )
perimeter of a triangle = add up all the sides
2 ( x + 2 + x + 1 ) = x + 7 + x + 3 + x + 9
2 ( 2x + 3 ) = 3x + 19
4x + 6 = 3x + 19
x = 19 - 6
x = 13
Hope my answer helps!