All categories

2 years ago

The sum of two numbers is 61.The larger number is 4 more than two times the smaller number. What is the smaller number?

2 answers:

6 0

Smaller number = x
larger number = y

$\left \{ {{y+x=61} \atop y=2x+4}} \right.$

solve the system of equations by substitution:

(2x+4) + x = 61
3x+4 = 61
3x=57
x=19

Plug x into the top equation and solve for y:

y + (19) = 61
y = 42

Liula [17]2 years ago

4 0

A + b = 61 a > b a = 2b + 4

2b + 4 + b = 61
3b + 4 = 61
3b = 57
b = 19

You might be interested in

Write a division number story with an answer of 1/4

Rasek [7]

Answer:

Once upon a time I had 4 candies. there were 4 kids to share to (including me). what fraction of the candies does each child get

Step-by-step explanation:

4÷4=1

1/4

7 0

2 years ago

Read 2 more answers

a fruit salad contains 20 different pieces of fruit. there are 3 pieces of apple, 8 pieces of watermelon, 7 pieces of banana, an

Neko [114]

There are 2 oranges, if that’s what the question was?

8 0

2 years ago

Read 2 more answers

10 pt

lord [1]

Answer:

C. 434π

Step-by-step explanation:

Given:

Radius (r) = 7 in.

Height (h) = 24 in.

Required:

Surface area of the cylinder

Solution:

S.A = 2πrh + 2πr²

Plug in the values

S.A = 2*π*7*24 + 2*π*7²

S.A = 336π + 98π

S.A = 434π

5 0

2 years ago

Between which two consecutive integers does <img src="https://tex.z-dn.net/?f=%5Csqrt%7B%7D%2012%5C%5C" id="TexFormula1" title="

Annette [7]

The most appropriate choice for square root will be given by-

$\sqrt{12}$ lies between 3 and 4

What is square root of a number?

Number raised to the power $\frac{1}{2}$ is the square root of the number.

Here

$\sqrt{12}\\ 2\sqrt{3}\\ 2*1.732\\3.464\\$

3.464 lies between 3 and 4

$\sqrt{12}$ lies between 3 and 4

To learn more about square root of a number, refer to the link:

brainly.com/question/3617398

#SPJ9

7 0

6 months ago

Mrs. Gomes found that 40% of students at her high school take chemistry. She randomly surveys 12 students. What is the probabili

zlopas [31]

Answer:

The correct answer to the following question will be "0.438".

Step-by-step explanation:

Just because Mrs. Gomes finds around 40% of students in herself high school are studying chemistry.

Although each student becomes independent of one another, we may conclude:

"x" number of the students taking chemistry seems to be binomial to p = constant probability = 0.40

Given:

Number of surveys

= 12

Exactly 4 students have taken chemistry:

$=P(X\leq4)$

$=P(x=0)+P(x=1)+P(x=2)+P(x=3)+P(x=4)$

$=\Sigma_{0}^{4} C_{r}(0.4)^r(0.6)^{12-r}$

On substituting the above equation, we get the probability of approximately "0.438".

So that the above would be the appropriate answer.

5 0

3 years ago