3 years ago

Guys I need you help!!!plss help meee

Mathematics

2 answers:

morpeh [17]3 years ago

6 0

5^2 + 12^2 = c^2
25+144=c^2
12=c
sorry if i’m wrong!!

AysviL [449]3 years ago

3 0

Click control U on your keyboard

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How do you solve -k/5 times 7/5

Firdavs [7]

Answer:

$\frac{-7}{25}k$

Step-by-step explanation:

$\frac{-k}{5} *\frac{7}{5}$

just multiply across

-k*7=-7k

5*5=25

$\frac{-7}{25}k$

hope this helps

5 0

2 years ago

Carl bought 19 apples of 2 different varieties to make a pie.The total cost of the apple was $5.10.Granny Smith apples cost $0.2

disa [49]

For this case we propose a system of equations:

x: Let the variable representing the quantity of Granny Smith apples

y: Let the variable representing the number of Gala apples

According to the statement we have:

$x + y = 19\\0.25x + 0.30y = 5.10$

From the first equation we have to:

$x = 19-y$

replacing in the second equation:

$0.25 (19-y) + 0.30y = 5.10\\4.75-0.25y + 0.30y = 5.10\\4.75 + 0.05y = 5.10\\0.05y = 5.10-4.75\\0.05y = 0.35\\y = \frac {0.35} {0.05}\\y = 7$

So, Carl bought 7 Gala apples

On the other hand:

$x = 19-7 = 12$

So, Carl bought 12 Granny Smith apples

Answer:

Carl bought 7 Gala apples and 12 Granny Smith apples

8 0

3 years ago

Of the 80 girls in Joy's class, 24 have blond hair. What percent of girls in Joy's class have blond hair?

alexandr1967 [171]

Answer:

30%

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Help assap with this question?!?!?

Irina18 [472]

Slope-intercept form is y=mx+b
m is slope and b is y-intercept.
So, if you have -5x-3y=3
Make it into y=something
So, -3y=3+5x
y= -3/3 + 5/-3 x
y= -1 - 5/3 x
Same as the first one in your pic.

7 0

3 years ago

Two numbers are in the ratio 5 : 7. If they differ by 18 then, find the numbers.

4vir4ik [10]

Answer:

45 and 63

Step-by-step explanation:

7x-5x=18

2 2

x=9

7(9)=63

5(9)=45

3 0

3 years ago