All categories

2 years ago

Gary is 25 years old. That is 7 more than

Mathematics

1 answer:

SpyIntel [72]2 years ago

5 0

Answer:

2x + 7 = 25

x = 7

Step-by-step explanation:

Gary: 25

Sean: x

----------------------------

Let's break down the sentence into mathematical terms

Gary is 25 years old. That is 7 more than twice Sean's age.

In math, is means equal to. It is represented with an equal sign (=)

Gary = 25. 25 = 7 more than twice Sean's age.

7 more is represented by 7 +

Gary = 25. 25 = 7 + than twice Sean's age.

Twice means double which is 2 ·

Gary = 25. 25 = 7 + 2 · Sean's Age

Sean's Age will be represented by x

Gary = 25. 25 = 7 + 2x

We don't need it to say "Gary = 25" in our equation.

25 = 7 + 2x

Let's rewrite it with the associative property.

2x + 7 = 25

---------------------

Now, solve

2x + 7 = 25

-7 -7

2x = 18

÷2 ÷2

x = 7

----------------------

Sean is 7 years old.

You might be interested in

6/5 divided by 3/2 times 15/8 divided by 9/8

cricket20 [7]

Work to your question

4 0

3 years ago

What is 4xy + x + 2xy

Vika [28.1K]

Answer: =6xy+x..............

5 0

3 years ago

Read 2 more answers

Find the coordinates of the point (x,y) at the given angle θ on a circle of radius r centered at the origin. Show all work. Roun

beks73 [17]

Answer:

(i) The equivalent coordinates in rectangular form are $(x, y) = (-3.277,-2.294)$ .

(ii) The equivalent coordinates in rectangular form are $(x, y) = (0.866, 0.5)$ .

Step-by-step explanation:

In this exercise we must find the equivalent coordinates in rectangular form from polar form. That is:

$(x, y) = (r\cdot \cos \theta, r\cdot \sin \theta)$

Where:

$r$ - Norm of vector, dimensionless.

$\theta$ - Direction of vector with respect to +x semiaxis, measured in sexagesimal degrees.

(i) ( $r = 4$ , $\theta = 215^{\circ}$ )

$(x. y) = (4\cdot \cos 215^{\circ}, 4\cdot \sin 215^{\circ})$

$(x, y) = (-3.277,-2.294)$

The equivalent coordinates in rectangular form are $(x, y) = (-3.277,-2.294)$ .

(ii) ( $r = 1$ , $\theta = 30^{\circ}$ )

$(x. y) = (1\cdot \cos 30^{\circ}, 1\cdot \sin 30^{\circ})$

$(x, y) = (0.866, 0.5)$

The equivalent coordinates in rectangular form are $(x, y) = (0.866, 0.5)$ .

6 0

3 years ago

4 out of 12 family riders are for young readers under the age of 5 what fraction has the same value as4/12?

nataly862011 [7]

The answer would be 1/3 because if you divide 4 divided by 4 it's 1 and 12 divided by 4 is 3!

8 0

3 years ago

Read 2 more answers

What is the product of 7/9 and 6

ikadub [295]

Answer: 42/9

Step-by-step explanation: 7/9 x 6/1 = 42/9

8 0

3 years ago

Read 2 more answers