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Bingel [31]
3 years ago
15

Help I’m in middle of test

Mathematics
1 answer:
expeople1 [14]3 years ago
4 0

Answer:

13.8

Step-by-step explanation:

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Five siblings have a combined age of 195 years. The oldest is 13 years older than the youngest Marc the middle child Anne is fiv
lidiya [134]
This is what someone else answered when someone else asked it. I can't explain it better than this.





So five sibbllings ages are repressented as
a,b,c,d,e
let's have a as youngest and e as oldest in that order
total ages are 195 so
a+b+c+d+e=195
oldest is 13 older thatn youngest
e=13+a
middle child anne (c) is 5 years younger than josie who is an unknow position, we know that she could be d or e or oldest or second oldest
the other 2 are 6 years appart
b and d ar e 6 years appart or b and e are 6 years apart? or is josie the oldest, or second oldest?

second oldes is 42 so
d=42

2 scenarios
if josie is oldest, then see AAAA and if josie is second oldest then see BBBB

AAAA
josie is 13 years older than mark
e=13+a
anne is 5 less than josie
c=e-5
the other 2 are 6 years apart
b+6=d
d=42
subsitute and get
b=36
add and get
78+a+c+e=195
a+c+e=117
e-13+e-5+e=117
3e-18=117
add 18 to both sides
3e=135
divided both sides by 3
e=45
subsitute
a=32
b=36
c=40
d=42
e=45


BBBB
oldest is 13 older than youngest
e=13+a
middle is 5 younger than josie (d)
c=d-5
the other 2 are 6 apart
b=e-6
d=42
subsitute
c=37
subsitute
a+b+37+42+e=195
a+b+e+79=195
subtract 79 from both sides
a+b+e=116
subsitute
e-13+e-6+e=116
3e-19=116
add 19 to both sides
3e=135
divide both sides by 3
e=45
subsitute
45-6=39=b
45-13=32=a
c=42-5=37
this is wrong because b cannot be older than c so therefor AAA si the correct answer


THE ANSWER IS
Josie is the oldest=45
Unknown is second oldest=42
Anne is middle=40
Unknown2 is second youngest=36
Mark is the youngest=32
5 0
3 years ago
A sporting goods sold 2.5 times as many football as basketball last year drag footballs to represent the number of football sold
arlik [135]

Answer:

<em>5 footballs were sold for every 2 basketballs sold.</em>

Step-by-step explanation:

2.5 times as many football as basketball was sold last year

This can be represented as

1 basket ball sold = 2.5 footballs sold

for every 2 basketball sold, number of football sold = 2.5 x 2 = <em>5 footballs</em>

4 0
3 years ago
Answer for a brainlist!!!!
Nitella [24]

Answer:

Market A

Step-by-step explanation:

MA) 28/12= 2.33333

MB) 23.75/10= 2.375

MC) 15.75/6=2.625

Market A has the best price per shrimp

6 0
3 years ago
If f(x) = -3x-5 and g(x)=4x-2, find (f-g)(x)
MA_775_DIABLO [31]

f(x) -g(x) = -3x-5 -(4x-2)

distribute

-3x-5 -4x+2

combine like terms

-7x-3

Answer:

-7x-3

6 0
3 years ago
Read 2 more answers
Which of the following can cause market failure?
nalin [4]

Answer: C

Step-by-step explanation: not enough information

5 0
3 years ago
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