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Volgvan
3 years ago
5

Twice a number decreased by 16 is 64.

Mathematics
1 answer:
Artyom0805 [142]3 years ago
8 0
You number is 40 40 x 2= 80- 16 =64 your welcome :)
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A grocery store is offering a sale on bread and soup. Khalil buys four cans of soup and
Flura [38]

Answer:

a) cblo

2)$3.44

Step-by-step explanation:

4 cans and 3 loaves=11.67

8 cans and 1 loaf= 12.89.

Set up equation:

x=cans

y=loaves

4x+3y=11.67\\8x+y=12.89 This is the answer for question A.

Multiply eq1 by 2:

8x+6y=23.34

Subtract eq3 by eq2:

5y=10.45\\y=2.09

Substitute:

8x+2.09=12.89\\8x=10.8\\x=1.35

One can of soup and one loaf of bread=

1.35+2.09 or 3.44

So:

$3.44

Hope this helps :D Please hit the crown if u can !!

6 0
3 years ago
Starting at home, Jessica traveled uphill to the grocery store for 18 minutes at just 20 mph. She then traveled back home along
N76 [4]

Try this solution with short explanation; note, the suggested way is not the shortest one; the answers are marked with red colour.

Task no. 2: another solution is 45* (4/5) / (6/4) = 24 min.

3 0
3 years ago
One country has 12 stone bridges and 20 steel bridges. What is the ratio of ? A. Stone bridges to steel bridges. B. Steel bridge
Gemiola [76]

Answer:

A. Stone bridges to steel bridges=

12 : 20

6 : 10

3 : 5

answer = 3 : 5

B. Steel bridges to Stone bridges

20 : 12

10 : 6

5 : 3

answer = 5 : 3

Total bridges = 20+12=32

C. Total bridges to steel bridges

32 : 20

16 : 10

8 : 5

answer = 8 : 5

3 0
2 years ago
Find the equation of the line that passes through (3,1) and is parallel to y = 3 − 2 x . Leave your answer in the form y = m x +
Misha Larkins [42]

Answer:

y=3-2x

Step-by-step explanation:

Parallel to y = 3 − 2 x => y=c-2x

Through (3,1) => 1=c-2(1) <=> c=3

Line is y=3-2x

5 0
2 years ago
Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in s
Alisiya [41]
This will be a 4th degree polynomial.  Our root of x = 7 in factorization form is (x-7).  Our root of x = -11 in factorization form is (x+11) and the last one is a complex number.  According to the conjugate root theorem, if we have 2+8i, we also HAVE to have 2-8i.  In factorization form that first one is (x-(2+8i)) which simplifies to (x-2-8i).  Its conjugate in factorization form is (x-2+8i).  Now we will FOIL all that out.  Let's start with the (x-2-8i)(x-2+8i).  That multiplies out to x^2-2x+8ix-2x+4-16i-8ix+16i-64i^2.  We have to combine like terms here to shorten that a bit.   x^2-4x+4-64i^2.  i^2 is equal to -1, and -1(64) = -64.  Now we have  x^2-4x+4-(-64).  That is  x^2-4x+68.  Now let's FOIL in another factorization.  (x^2-4x+68)(x-7).  That comes out to  x^3-11x^2+96x-476.  One more term to go!  x^3-11x^2+96x-476)(x+11).  That, finally, is x^4-25x^2+580x-5236. 
5 0
3 years ago
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