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Korvikt [17]
2 years ago
9

Use the model to write the equation that represents the problem.

Mathematics
1 answer:
sdas [7]2 years ago
4 0
5/2 • 4/1 (flip the second fraction to multiply)
20/2
10


A
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Ricky can ride 17 km on his bike in the same length of time ha can walk 9 km.if his riding speed is 4 kph faster than his walkin
aivan3 [116]
Distance=speed times time
if they take the same time, we cal the time , t

b=bike speed
w=walking speed

bikedistnace=17=bt
walkdistance=9=wt

b is 4 more than w
b=4+w

we have
17=bt
9=wt
b=4w

ok so
multiply first equation by 9 and 2nd by 17

153=9bt
153=17wt
set equal
9bt=17wt
divide both sides by t
9b=17w
sub b=4+w for b
9(4+w)=17w
distribute
36+9w=17w
minus 9w both sides
36=8w
divide both sides by 8
4.5=w

he walks 4.5kph
5 0
3 years ago
A bakery used 38 pounds of flour to make French bread and
fomenos

Answer:

since we are not given the options, I will write down a few equations that represent the number of French bread loaves and bagels:

  • a = number of loaves of French bread
  • b = number of bagels
  • available amount of flour = 38

2a + b ≤ 38

2a ≤ 38 - b

a ≤ (38 - b) / 2

a ≤ 19 - 0.5b

b ≤ 38 - 2a

b ≤ 2(19 - a)

Hopefully one of these equations is one of the choices given to you.

8 0
2 years ago
How many solutions does the equation have?
Rus_ich [418]
2(2x+5)=4(x+3)\\2\times2x+2\times5=4\times x+4\times3\\4x+10=4x+12\ \ \ \ |subtract\ 4x\ from\ both\ sides\\10=12-FALSE\\\\therefore,\ answer\ is\ \boxed{C.\ No\ solution}
7 0
3 years ago
Read 2 more answers
A point is reflected across the x-axis. The new point is (5 -3.5) What is the distance between the two points?​
alukav5142 [94]

Answer:

10

Step-by-step explanation:

8 0
2 years ago
Substitute x=-4 into the expression 5x-x+8
Natasha2012 [34]

Answer:

-8

Step-by-step explanation:

5(-4)-(4)+8

-20+4+8

-20+12

-8

5 0
2 years ago
Read 2 more answers
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