1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
S_A_V [24]
3 years ago
5

Jenny johnston bought some apples for 79 cents per pound and twice as many pounds of bananas for 39 cents per pound. if her tota

l bill was $7.58, how many pounds of bananas did she buy?
Mathematics
1 answer:
slavikrds [6]3 years ago
6 0
This is an algebra problem. We let x be the variable for the number of pounds of apples bought, and y be the number of pounds of bananas bought. From the descriptions, the formulas that we can formulate are:

y = 2x  --> eqn 1
0.79x + 0.39y = 7.58 --> eqn 2

Substituting eqn 1 to eqn 2:
0.79x + 0.39(2x) = 7.58
Solving for x,
x = 4.828 pounds of apples
y = 2x = 2(4.828) = <em>9.656 pounds of bananas bought</em>
You might be interested in
Find the value of 'x' in the given figure <br>​
Dahasolnce [82]

Answer:

x=10

Step-by-step explanation:

The value of x is 10

rate me and thank me!!!

7 0
3 years ago
Read 2 more answers
What is the factorization???
Sav [38]

we can see that

the above curve is parabola

so, firstly , we can find vertex

vertex is (4,0)

(h,k)=(4,0)

now, we can use vertex formula of parabola

y=(x-h)^2+k

we can plug h and k

and we get

y=(x-4)^2+0

so, we can factor it as

y=(x-4)(x-4)............Answer

6 0
3 years ago
How to find variables x- and y-
Monica [59]

It says that the triangles are congruent (same size). Also, a triangle's angles add up to 180 degrees. In both of these triangles, one angle is 90° and another angle is 52°. The other angle is 180°-90°-52°=38°.

Solve these equations to find x and y: 2x+18=38, 3y+11=38

2x+18=38\\2x=20\\x=10

3y+11=38\\3y=27\\y=9

5 0
3 years ago
Is the following relation a function?<br><br><br> x y<br> 1 4<br> −1 −2<br> 3 10<br> 5 16
Sergio [31]
No , because it doesn’t have a pattern . For example put the numbers in a chart 1+3 = 4 , -1+3 =2 , 3+7=10 , 5+11=16 , there’s no pattern
3 0
3 years ago
What is the answer to 10 = -4 x?
lawyer [7]
Solve for x
Divide both sides by -4
X= - 10/4
Now simplify by dividing top and bottom by 2
X= -5/2 or - 2 1/2
6 0
3 years ago
Other questions:
  • How do you type a fraction on google calculator?
    5·2 answers
  • 15mi/1hr=ft/sec how do sovle this????
    5·1 answer
  • Find the value of: <img src="https://tex.z-dn.net/?f=%281-%5Cfrac%7B1%7D%7B2%5E2%7D%29%281-%5Cfrac%7B1%7D%7B3%5E2%7D%29...%281-%
    9·2 answers
  • The width of a rectangle is 3 more than twice its length. the area is 35 square meters what is the length of the rectangle
    10·1 answer
  • Sarah lives 1,493 miles from her grandmother. One year, sarah's family made 4round trips to visit her grandmother. How many mile
    5·2 answers
  • 2. The table shows the prices of some breakfast items at a restaurant. Sara ordered 2 eggs, a slice of bacon, and
    6·1 answer
  • Complete the standard form of the equation -5y = 10 - 2x<br> ____x +____y = 10
    12·1 answer
  • Can someone plz help me
    12·1 answer
  • What is 89 -8? <br><br> With decimal
    10·2 answers
  • What is the probability of<br> spinning an A?<br> B<br> B<br> A<br> B<br> C<br> A<br> [?]%<br> C
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!