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kondaur [170]
3 years ago
8

Amata mixes 2 parts black paint with 3 parts white paint to make 90 mL of gray paint. How much white paint does Amata use to mak

e the gray paint?
A 18 mL

B 30 mL

C 45 mL

D 54 mL​

José chose A as the correct answer. How might he have gotten that answer?​
Mathematics
1 answer:
Orlov [11]3 years ago
6 0

Answer:

is 18 because 6x3 is 18 ok

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Simplify the expression<br><br> -4 + 3 + 5 =
xenn [34]

Answer:

4

Step-by-step explanation:

-4+3=-1

-1+5=4

8 0
2 years ago
Suppose that 7 female and 5 male applicants have been successfully screened for 5 positions. If the 5 positions are filled at ra
katen-ka-za [31]

Answer:

(a) 350

(b) 175

(c) 21

(d) 196

Step-by-step explanation:

Number of females = 7

Number of males = 5

Total ways of selecting r items from n items is

^nC_r=\dfrac{n!}{r!(n-r)!}

(a)

Total ways of selecting 3 females and 2 males.

\text{Total ways}=^7C_3\times ^5C_2

\text{Total ways}=\dfrac{7!}{3!(7-3)!}\times \dfrac{5!}{2!(5-2)!}

\text{Total ways}=35\times 10

\text{Total ways}=350

(b)

Total ways of selecting 4 females and 1 male.

\text{Total ways}=^7C_4\times ^5C_1

\text{Total ways}=32\times 5

\text{Total ways}=175

(c)

Total ways of selecting 5 females.

\text{Total ways}=^7C_5\times ^5C_0

\text{Total ways}=21\times 1

\text{Total ways}=21

(d)

Total ways of selecting at least 4 females.

Total ways = 4 females + 5 females

\text{Total ways}=175+21

\text{Total ways}=196

6 0
3 years ago
What is the value of f in the equation f+1/6=3/7
ankoles [38]
It think it is <span>f = 11/42 = 0.262 
do some research! </span><span />
5 0
3 years ago
Read 2 more answers
a comedy show sells lower level tickets for $78 and upper level tickets for $59. on the opening knight 2368 tickets were sold fo
shusha [124]
Let L represent lower level tickets and U upper level.

Starter equations:
L + U = 2368
78L + 59U = 157800

Solve simultaneous equations:
59L + 59U = 139712
so 19L = 18088
L = 952
U = 2368 - 952 = 1416

952 lower level tickets and 1416 upper level tickets were sold.
3 0
3 years ago
“I think of a number and divide it by 5. The answer is 20.”
muminat

Answer: 100

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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