Answer:
It will take 10 hours.
Step-by-step explanation:
We know distance = rate * time
Sally's rate = 55
Jim's rate = 65
We want Jim to be 100 miles ahead of Sally
The time will always be the same.
d =Sally's distance
Sally
d = 55t
Jim
d+100 = 65 t
We know have 2 equations with 2 unknowns. Substitute d= 55t into Jim's equations
55t + 100 = 65t
Subtract 55t from both sides.
55t-55t + 100 = 65t-55t
100 = 10t
divide each side by 10
100/10 = 10t/10
10 = t
Twenty-seven minus 3/2of a number (x) is not more than 36.
27 - (3/2)X = 36
What is the number?
(3/2)X = 27 - 36 = - 9
X = (- 9x2)/3 = -18/3 = -6
Check
36 = 27 - (3/2)X = 27 - (3/2)x(-6) = 27 - (-18/2) = 27 - (-9) = 36
Answer:
X= 50°
Y= 70°
Z= 30°
BDE= 30°
2BDE= 60°
Step-by-step explanation:
(2x -70 )+z+(2x+20)=180...(sum of angle on a straight line)
2x -70 = BDE... alternate angles
Y + (2x-70)+(50+x-20) = 180...(sum of angles in a triangle)
X-20 = z ... alternate and opposite angles
(2x -70 )+z+(2x-+20)=180
2x-70 + x-20 +2x +20= 180
5x -70= 180
5x = 250
X= 50°
X-20 = z
50-20= z
30° = z
2x -70 = BDE
2(50) -70 = BDE
100-70 = BDE
30°= BDE
Y + (2x-70)+(50+x-20)
Y + 100-70 +50 +50 -20 = 180
Y + 200-90=180
Y= 70°
2BDE = 2*30
2BDE= 60°
Answer:
<em>Answer B</em>
Step-by-step explanation:
<u>Fractions on the Number Line</u>
The number line contains an ordered sequence of the numbers, where the smaller numbers are at the left of the greater numbers.
This means -3 is to the left of -2, which is to the left of -1.
Number -2 1/4 lies between -2 and -3.
The only point lying on that interval is B.
Answer B
Answer:
1. -10x^2-x+6-10x 2-x+6 = -10x^2 - 22x + 12
2. 10x^2-510x 2-5 = 10x^2 - 1020x - 5
Step-by-step explanation:
hope this helps
if i did something wrong let me know so i can fix my answer
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