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3 years ago

Solve the equation. Then check your solution. 5 /9 d = 9 /10 a. 31 / 90 c. 1/2 b. 1 31 /90 d. 50 /81

Mathematics

2 answers:

miskamm [114]3 years ago

8 0

Answer:

d in (-oo:+oo)

(5/9)*d = 9/10 // - 9/10

(5/9)*d-(9/10) = 0

(5/9)*d-9/10 = 0

5/9*d-9/10 = 0 // + 9/10

5/9*d = 9/10 // : 5/9

d = 9/10/5/9

d = 81/50

Step-by-step explanation:

Katena32 [7]3 years ago

7 0

Answer:

81/50 (just choose D.)

Step-by-step explanation:

Solve for d by simplifying both sides of the equation, then isolating the variable.

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What is 4x+3 = 5x :))

Butoxors [25]

Answer:

x = 3

Step-by-step explanation:

4x + 3 = 5x

4x = 5x - 3

4x - 5x = -3

(4 - 5)x = 1x

-1x = -3

x = -1 × (-3)

x = 3

8 0

3 years ago

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Does anyone know the answer?

motikmotik

Answer:

We conclude that the area of the right triangle is:

$A\:=p^2-2p-3$

Hence, option A is correct.

Step-by-step explanation:

From the given right-angled triangle,

Base = p+1

Perpendicular = 2p-6

Using the formula to determine the area of the right-angled triangle

Area of the right triangle A = 1/2 × Base × Perpendicular

$=\frac{1}{2}\left(p+1\right)\left(2p-6\right)$

Factor 2p-6: 2(p-3)

$=\frac{\left(p+1\right)\times \:2\left(p-3\right)}{2}$

Divide the number: 2/2 = 1

$=\left(p+1\right)\left(p-3\right)$

$\mathrm{Apply\:FOIL\:method}:\quad \left(a+b\right)\left(c+d\right)=ac+ad+bc+bd$

$=pp+p\left(-3\right)+1\cdot \:p+1\cdot \left(-3\right)$

$=pp-3p+1\cdot \:p-1\cdot \:3$

$=p^2-2p-3$

Therefore, we conclude that the area of the right triangle is:

$A\:=p^2-2p-3$

Hence, option A is correct.

3 0

3 years ago

What number must be distributed in the following equation?

allochka39001 [22]

Answer:

-6

Step-by-step explanation: -6 is your answer because it’s outside of the parenthesis

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Write the equation of the given circle. center (1, -5) radius of 10

Naddika [18.5K]

Answer:

$(x-1)^2+(y+5)^2=100$

Step-by-step explanation:

The equation of a circle has the following form:

$(x-h)^2+(y-k)^2=r^2$ where (h,k) is the center of a circle with radius r.

Our equation center is (1.-5) and radius is 10.

$(x-1)^2+(y--5)^2=10^2$

$(x-1)^2+(y+5)^2=100$

3 0

3 years ago

The same of Kaleigh and Dwaynes age is 30. Three times Kaleighs age minus twice Dwaynes age equals five. How old is César if he

Nitella [24]

Answer:

cesar is 11 1/4 years old

Step-by-step explanation:

k = kaleighs age

d = dwaynes age

3k - 2d = 5

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rewrite

-k -k

d = 30 - k

substitute

3k - 2(30 - k) = 5

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4k - 60 = 5

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/4 /4

k = 16.25

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6 0

3 years ago