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Len [333]
3 years ago
12

Samuel spent $16 for 4 erasers and 2 pencils. Alva spent $10.50 for 3 erasers and 1 pencil. How much does 5 erasers and 3 pencil

s cost?
$___.00
Mathematics
2 answers:
kiruha [24]3 years ago
5 0

Answer:

Step-by-step explanation:

9966 [12]3 years ago
3 0

Answer:

Step-by-step explanation:

Let E = Erasers and P = Pencils

4E + 2 P = $16…(1)

3E + 1P = $10.50…(2)

Multiply (2) by 2 to make Pencils in (1) and (2) equal.

6E + 2P = $21…(3)

Subtract (3) from (1) to eliminate P

2E = $5 => Erasers = $2.50 each

Substitute this value for Erasers into (3)

6 * $2.50 + 2P = $21

2P = $21 - $15 = $6 => Pencils = $3

Therefore 5 Erasers + 3 Pencils cost

5 * $2.50 + 3 * $3 = $12.50 + $9 = $21.50

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The histogram to the right represents the weights​ (in pounds) of members of a certain​ high-school math team.
kupik [55]

Answer: There are total 20 team members.

Step-by-step explanation:

Ans: There are total 20 team members.

Concept: In the given picture a graph shows the relation between the number of people and their weight. The y-axis shows the number of team members and the x-axis shows the weight of those particular number of members. So, just notice the number of members corresponding to all the given weights and add them.

Solution step by step

Step 1: Members corresponding to 115kg

There are total 5 members having 115kg weight.

Step 2: Members corresponding to 135kg

There are total 3 members having 135kg weight.

Step 3: Members corresponding to 155kg

There are total 2 members having 155kg weight.

Step 4: Members corresponding to 175kg

There are total 0 members having 175kg weight.

Step 5: Members corresponding to 195kg

There are total 3 members having 195kg weight.

Step 6: Members corresponding to 215kg

There are total 4 members having 215kg weight.

Step 7: Members corresponding to 235kg

There are total 3 members having 235kg weight.

Step 8: Add the number of members

The total number of members are 5+3+2+0+3+4+3=20

So, the total number of members are 20.

#SPJ10

5 0
1 year ago
Use the Distributive Property to write an expression that is<br> equivalent to 4(y - 3).
Nonamiya [84]

Answer:

4y-12

Step-by-step explanation:

To multiply a sum (or difference) by a factor, each summand (or minuend and subtrahend) is multiplied by this factor and the resulting products are added (or subtracted).

If the operation outside the parentheses (in this case, the multiplication) is commutative, then left-distributivity implies right-distributivity and vice versa, and one talks simply of distributivity.

5 0
3 years ago
Ben is taking a typing class, and the following line graph represents the number of words per minute he was able to type each we
Crank
During week 2, he could type 15 words per minute, at his fourth week, he could type 30. So 30-15=15. He could type 15 words faster on week 4 than he could at week 2.
3 0
3 years ago
Please help with number 3!! I can’t figure it out.
FrozenT [24]

Answer:

Gabe worked 65, Abe worked 62 and Babe worked 69.

Step-by-step explanation:

Let Gabe = x

Therefore, Abe worked: x-3 and Babe worked x+4

So,

x+(x-3)+(x+4)=196

3*x+1=196

3*x=195

x=65

Then,

x-3= 62

x+4=69


8 0
2 years ago
What expression represents the area of the triangle?
inysia [295]
A=bh/2, that is area is equal to half of the product of the base and height, so in this case:

A=(1/2)*10*24
3 0
3 years ago
Read 2 more answers
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