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pychu [463]
4 years ago
10

Solve 7(2k +4)- (3k+1)=49

Mathematics
2 answers:
drek231 [11]4 years ago
7 0
7(2k+4)-(3k+1)=49
14k+28-3k-1=49
11k+27=49
11k=22
k=2
Aleksandr [31]4 years ago
5 0
7(2k+4)- (3k+1)=49
14K+28- (3k+1)=49
14k+28 -3k -1=49
11k +27=49
11k=22
K=2

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Needing help, the secretary of the united states department of agriculture asked your teacher, "if a chicken-and-a-half can lay
Flura [38]

we are given that

3 chickens to lay 32 eggs

now, we can find number of eggs per chicken

number of eggs per chicken= (total eggs)/(total chicken)

so, we get

number of eggs per chicken is

=\frac{32}{3}

now, we can set up following

1.5 chicken : 1.5 eggs : 1.5 days  

3 chickens : 3 eggs : 1.5 days  

1 chicken : 1 egg : 1.5 days

Since, changing number of chicken won't affect time

time to lay eggs will always remain same

so,

for 1 chicken to lay =\frac{32}{3} eggs

it takes

=\frac{32}{3}*1.5 days

=16 days..............Answer


8 0
3 years ago
Define a variable and write an expression to represent the following phrase:
ryzh [129]

Answer:

x - 7 = age of whatever you are finding the age of

Step-by-step explanation:

seven years younger implies that you are taking away so we minus it from  our variable, Tates age is the variable since it does not tell us his/her age in the statement given.

6 0
3 years ago
Based on the Census, state A has 17 fewer electoral votes for president then state B. If the total number of electoral votes for
makkiz [27]
X = B.......x - 17 = A

x + x - 17 = 87
2x - 17 = 87
2x = 87 + 17
2x = 104
x = 104/2
x = 52........so state B has 52 electoral votes

x - 17 = A
52 - 17 = A
35 = A.....so state A has 35 electoral votes



6 0
4 years ago
Francine has a picture that is 5/2 its width. She wants to enlarge the picture to have an area of 490 in2. What will the dimensi
serg [7]

Answer:

Length = 2w

Width= w

2w times w= 241

2W^2=241

Divide by 2

W-^2=121

Sq rt each side

W-= 11 cuz 11 times 11=121

hope this helped

If it did, brainliest would be appreciated!

5 0
3 years ago
Can you please help me please I really need help
Cerrena [4.2K]

Answer:

1)86

2)102

3)118

4)134

Step-by-step explanation:

1) so we know that the photographer started off with 86 photographs and has been uploading 16 each month since then

so in month 1 she would have 86

in month 2: 86+16=102

month 3: 102+16=118

month 4: 118+16=134

you could also use the expression

y=16x+70

how to get this equation: get slope(16) by subtracting p coords and m coord

substitute slope in slope intercept form

y=16x+b

insert in a coordinate pair(1,86)

86=16+b

b=70

hence y=16x+70

4 0
3 years ago
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