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2 years ago

Which value for x makes the sentence true? 1/10 + x = 1/7

Mathematics

1 answer:

alexandr1967 [171]2 years ago

6 0

Answer:

3/70

Step-by-step explanation:

change 1/10 and 1/7 so the denominator (bottom number) is the same. 1/10= 7/70 and 1/7= 10/70 so you need 3/70 to make the two numbers equal.

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If x=y and y=10, then x=10 exemplifies which property?

Anna35 [415]

ANSWER

Transitive property of equality.

EXPLANATION

According to the transitive property of equality,

a=b and b=c, then a=c.

Therefore,

if x=y and y=10, then x=10 is an example of transitive property of equality.

8 0

2 years ago

Sandra has $20 in a savings account that earns 5% annually. The interest

Law Incorporation [45]

20*5%= 20* 0.05=1 , and 1 year= 365 days, so 1 *355=$355 in one year I think, but I’m not sure how to use the formula

7 0

3 years ago

Read 2 more answers

Isaac wants to buy tomatoes and a loaf of bread. Tomatoes are $1.20 a pound, and a loaf of bread is $2.00. He has $8.00 to spend

Anestetic [448]

Answer:

Isaac has $4.80 left

Step-by-step explanation:

$1.20 + 2.00 = 3.20

$8.00 - 3.20 = 4.80

4 0

3 years ago

Mary is also a civil engineer, and she is building a triangular community garden. She knows two angles in the triangular garden,

pantera1 [17]

Answer:

A= 61

B=119

Step by step:

a; interior angle

180-(27+92)

=180(119)

=61

b; exterior angle

180-61

=119

7 0

2 years ago

Read 2 more answers

The base of a triangle is nine centimeters longer than the perpendicular height. If the area of the triangle is 180 square centi

Rom4ik [11]

Answer:

Step-by-step explanation:

<u>Equations</u>

Let's call

b= base of the triangle

h=height of the triangle

The base is 9 cm longer than the height, thus:

b = h + 9

The area of the triangle is:

$\displaystyle A=\frac{bh}{2}$

$\displaystyle A=\frac{(h+9)h}{2}$

And its value is 180:

$\displaystyle \frac{(h+9)h}{2}=180$

Multiplying by 2:

$(h+9)h=360$

Operating:

$h^2+9h-360=0$

Factoring:

$(h-15)(h+24)=0$

The only valid positive solution is:

h = 15 cm

And b = h + 9 = 24

b = 24 cm

The base is 24 cm long.

7 0

3 years ago