All categories

3 years ago

-4/5 + (-3/8) = what

Mathematics

2 answers:

lapo4ka [179]3 years ago

6 0

Answer:

-1.175

Step-by-step explanation:

-4/5 + (-3/8) = -4/5 + (-3/8) = -4 · 8/5 · 8 + (-3) · 5/8 · 5 = -32/40 + (-15/40) = -32 + (-15)/40 = -47/40

The common denominator you can calculate as the least common multiple of the both denominators - LCM(5, 8) = 40. The fraction result cannot be further simplified by cancelling.

In words - minus four fifth plus minus three eighth = minus forty-seven fortieth.

uysha [10]3 years ago

5 0

Answer:-47/40

Step-by-step explanation:

You might be interested in

Triangle FGH is reflected across a vertical line to produce ABC. Which statement is true

nadezda [96]

Answer:

answer is a

Step-by-step explanation:

answer would be a because a reflection does not change the size or shape of any figure

5 0

3 years ago

The ratio equivelent ot 1/3 is

Ann [662]

1:3 is equivalent to 1/3

7 0

3 years ago

Please help if you can ik it is Pythagorean theorem

kicyunya [14]

Step-by-step explanation:

A = (1/2)bh ---> h = 2A/b = 2(12 cm^2)/(5 cm) = 4.80 cm

---> x^2 = h^2 + (b/2)^2

= (4.8 cm)^2 + (2.5)^2

= 23.04 cm^2 + 6.25 cm^2

or x = 5.41 cm

Therefore, the perimeter P is

P = 2x + b = 2(5.41 cm) + 5 cm = 15.8 cm

5 0

3 years ago

In the figure, GK bisects FGH

bija089 [108]

Answer:

$w = 7$

Step-by-step explanation:

Given:

m<FGK = (7w + 3)°

m<FGH = 104°

angle bisector of <FGH = GK

Required:

Value of w

SOLUTION:

Since GK bisects angle FGH, it divides the angle into two equal parts. Therefore, the following equation can be generated to find the value of w:

m<FGH = 2*m<FGK

$104 = 2*(7w + 3)$ (substitution)

Divide both sides by 2

$\frac{104}{2} = \frac{2*(7w + 3)}{2}$

$52 = 7w + 3$

Subtract 3 from each side

$52 - 3 = 7w + 3 - 3$

$49 = 7w$

Divide both sides by 7

$\frac{49}{7} = \frac{7w}{7}$

$7 = w$

$w = 7$

8 0

3 years ago

7X +15 X equals A. 21x b. 21x^ c. 22x d. 22x^

forsale [732]

Answer: c. 22X

Step-by-step explanation:

7 0

3 years ago