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siniylev [52]
3 years ago
9

Can I please get help with this problem thank you kindly

Mathematics
1 answer:
Dmitry [639]3 years ago
4 0
I can’t see the picture
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How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid to obtain a mixture containing a
Nuetrik [128]

Answer:

40 quarts.

Step-by-step explanation:

Let x =quarts of the 50% solution

so, according to the question

the typical mixture equivalent equation will be like this

.50x + .20(20) = .40(x+20)\\.50x + 4 = .40x + 8\\.50x - .40x = 8 - 4\\.10x = 4\\x = 4/.10 \\x = 40

so the answer will be 40 quarts of 50% solution should be added.



5 0
2 years ago
Read 2 more answers
Leslie has thousand followers on Twitter. Her friend Vivian has
Tatiana [17]

Answer:

Vivian has 0.0 followers. Molly has 1000.00 followers.

Step-by-step explanation:

1000-1000= 0

0+1000=1000

7 0
3 years ago
How long is crosspiece AB? (Give answer to tenths accuracy.)
GalinKa [24]
a^{2}  + b^{2}=  c^{2}
4^{2} +10^{2}=c^{2}
16+100=116
c= [/tex]116
c= 10.77
8 0
3 years ago
Anyone know this answer? ive been stuck for a while now lol​
Rudiy27

Answer:

x > -3

the third option

Step-by-step explanation:

the circle is not filled in so we can first rule out the 2nd and last option. then since the arrow is pointing towards the positive side we can say x is more than -3

4 0
3 years ago
Read 2 more answers
14x^2 + 37x + 5....Richard is designing a new website for students to create study groups and collaborate with other students.
Furkat [3]
Answers:
1) The constant of the polynomial expression represents the:
number of group members when the site launches

2) The binomial (1+7x) is a factor of the polynomial expression and represents the:
number of members per group after x months

Solution:
1) The estimate for the total number of groups members (y) is given by the polynomial expression:
y=14x^2+37x+5
where x is the number of months since the site's launch.

When the site launchs:
x=0→y=14(0)^2+37(0)+5=14(0)+0+5=0+0+5→y=5
The number of group members when the site launches is 5
And the problem says: "The site will launch with five study groups"

2) The site will launch with five study groups, each with its creator as its only member, then the number of members per group is 1.
Richard estimates that seven new members will be added to each study group every month (x), then:
The number of members per group after x months will be: 1+7x

6 0
3 years ago
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