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amid [387]
3 years ago
13

I need b and c ASAP pls

Mathematics
1 answer:
skelet666 [1.2K]3 years ago
7 0

Answer:

the photo is blocked

Step-by-step explanation:

You might be interested in
1 - f = -5 the answer has to be 6 (show work) (please)
Anestetic [448]

Answer:

it is 6 because there is no other explanation to 1-f f=6!

Step-by-step explanation:

all i did was look 1 - f = 5 then f equaled 6!

8 0
3 years ago
Please help a step by step would be nice answer is also ok
nasty-shy [4]
I would choose A I’m not to sure tho
6 0
3 years ago
To travel 80 miles, it takes Sue, riding a moped, 2 hours less time than it takes Doreen to travel 60 miles riding a bicycle. Su
andriy [413]

Answer:

Time taken by Doreen is 6 hours and speed is 10 miles per hour.

Time taken by Sue is 4 hours and speed is 20 miles per hour.

Step-by-step explanation:

Let the speed of Doreen be x

According to the question  speed of Sue   is = x+10

time  taken By Sue to cover 80 miles = \frac{80}{x+10}

time taken by Doreen to travel 60 miles = \frac{60}{x}

According to question Sue take two hours less than Doreen takes

therefore

\frac{60}{x} - \frac{80}{x+10} =2

\frac{60(x+10)-80x}{x(x+10)} =2

60(x+10) -80x = 2(x(x+10)

60x+600-80x = 2x^2+20x\\

simplifying it ,we get

2x^2+40x-600=0\\

Dividing both sides by 2 ,we get

x^2+20x-300=0\\

solving it for x ,we get

(x+30)(x-10) =0

x =-30 which is not possible

x =10 miles per hour

Speed of Doreen = 10 miles per hour

Speed of Sue = 10+10 = 20 miles per hour

Time taken by Doreen = 60 divided by 10 = 6 hours

Time taken  by Sue = 80 divided by 20 = 4 hours

5 0
3 years ago
John bought 2 CDs that were the same price.Including sales tax,he paid a total of $33.60.Each CD has a tax of $1.30.What was the
exis [7]
16.15 because 33,60-1.30 is 32.30. 32.30 divided by 2 is 16.15
6 0
3 years ago
I need help on this plsss
topjm [15]

Answer:

.2

Step-by-step explanation:

The probability has to sum to 1

Red + yellow + green + black + white = 1

.25+ .30 + .05 + black + white = 1

.6 + black + white =1

subtract  .6 from each side

.6-.6+ black + white = 1-.6

black + white = .4

They said black and white received the same number of votes, so they will have the same probability

2 black = .4

Divide by 2

2 black /2 =.4/2

black =.2

7 0
3 years ago
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