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2 years ago

This is just areas ykyk

Mathematics

1 answer:

Tanzania [10]2 years ago

6 0

Answer: 108 sq units

Step-by-step explanation:

Multiply

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Pls help me 4x-2y=14 y=1/2x-1

kati45 [8]

Judging by the problem you want me to use substitute method
Since why equals 1/2x-1 you
Do 2(1/2x-1)= x-2
You multiple by 2 cause there’s two on the top for y. So the problem is now 4x-x-2
Combine like terms 3x+2=14
Subtract two on both sides
3x=12
X=4
Go back to the bottom since u know x now do y= 4.1/2-1 solve to get one
Y=1 so your answer is (4,1)

5 0

2 years ago

The length of one base of a trapezoid is 19 less than five times the length of the other base. If the trapezoid has a height of

ycow [4]

The length of the longer base is 41 ft.

Explanation

Lets assume, length of one base is $x$ ft.

As, another base is 19 less than five times the length of this base, so the length of another base $= (5x- 19) ft.$

The trapezoid has a height of 18 ft and area of 477 ft²

Formula for Area of trapezoid, $A=\frac{1}{2} (a+b)*h$ , where $a, b$ = Two bases of trapezoid and $h$ = height of the trapezoid.

Given in the question: $A= 477$ and $h= 18$

We have also two bases as: $a= x$ and $b= 5x-19$

So, according to the above formula...

$A= \frac{1}{2}(a+b)h\\\\ 477=\frac{1}{2}(x+5x-19)*18\\\\ 477=9(6x-19)\\\\477= 54x-171\\\\477+171=54x\\\\648=54x\\\\x=\frac{648}{54} = 12$

So, length of one base is $12 ft$ and another base $=(5*12-19)ft =(60-19)ft = 41 ft$

That means, the length of the longer base is 41 ft.

8 0

2 years ago

If you multiply a number by 3 and then subtract 5 you will get 40 what is the number

mart [117]

15 x 3 = 45 - 5 = 40
The number will be 15.
Hope this helped.

4 0

3 years ago

Read 2 more answers

O log2 3x + log2 3=2

ipn [44]

Answer:

$\large\boxed{x=\dfrac{4}{9}}$

Step-by-step explanation:

$\log_23x+\log_23=2\\\\\bold{DOMAIN}:\\3x>0\to x>0\\\\\text{Use}\ \log_ab+\log_ac=\log_a(bc)\\\\\log_2\bigg[(3x)(3)\bigg]=2\\\\\log_29x=2\qquad\text{use}\ \log_ab=c\iff a^c=b\\\\\log_29x=\log_22^2\\\\\log_29x=\log_24\iff9x=4\qquad\text{divide both sides by 9}\\\\\dfrac{9x}{9}=\dfrac{4}{9}\\\\\boxed{x=\dfrac{4}{9}}\in \bold{DOMAIN}$

8 0

3 years ago

Mr.Riley grows four different crops on his 300-acre farm. Each acre has the same number of plants. Corn=35% Wheat=25% Cotton=20%

MA_775_DIABLO [31]

A. Other crops: 35+25+20=80%
Beans: 100-80=20%

B. 300 acres×20%
=60 acres of cotton

C. Corn: 300×35%= 105 acres
Wheat: 300×25%= 75 acres
105-75= 30 more acres of corn than wheat

D. Yes, he is correct.
Corn fields+bean fields
35%+20%= 55%

3 0

3 years ago