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4 years ago

6

Help me with these please!!

1 answer:

Arisa [49]4 years ago

7 0

Five out of 35 (27+5) students wear a fun Pi-Shirt.

Construct a ratio:

5 (people with a fun t-shirt on) 59 (people with a fun t-shirt on)
________________________ =
32 (number of people in one class) x (number of students in the school)

The correct answer is D.

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How do you do this?? <br> explain it well please!

Nesterboy [21]

First you want to combine like terms. on the first equation we can combine 2x+x=3x. So now we have 3x-3. On the right side we can combine 12+1 so we now have -x+13. Now we will take add an x to -x so it's 0 but we have to do it to the other side as well so now we have 4x-3=13. now we will add three to -3 to make it 0 but again we have to do it to the other side. Now we have 4x=16. We want to figure out what x is so we now divide 4x by 4 so we are just left with x but we need to do it to the other side so your answer is x=4

4 0

3 years ago

How many numbers less than 51 are a product of two different prime numbers?

NeTakaya

3x17= 51 is the answer

4 0

2 years ago

Read 2 more answers

Write an expression that gives the requested sum.

Lyrx [107]

<h2>Answer:</h2><h2>The expression to give the requested sum after simplifying, $S_{20}$ = ${3(3^{20}-1) }$ </h2>

Step-by-step explanation:

To find the sum of first 20 terms,

a = 6, r = 3

By formula, $S_{n} = \frac{a(r^{n}-1) }{r-1}$

substitute the values in the above formula, the equation becomes,

$S_{20} = \frac{6(3^{20}-1) }{3-1}$

$S_{20} = \frac{6(3^{20}-1) }{2}$

$S_{20}$ = ${3(3^{20}-1) }$

8 0

3 years ago

The width of a triangle is six more than twice the height. The area of the triangle is 88in2. Find the height and base of the tr

malfutka [58]

For this case we have that by definition, the area of a triangle is given by:

$A = \frac {b * h} {2}$

Where:

b: It is the base of the triangle

h: It is the height of the triangle

According to the statement data we have:

$b = 6 + 2h$

Substituting we have:

$88 = \frac {(6 + 2h) * h} {2}\\176 = 6h + 2h ^ 2\\2h ^ 2 + 6h-176 = 0$

We divide between 2 on both sides:

$h ^ 2 + 3h-88 = 0$

We factor by looking for two numbers that, when multiplied, are obtained -88 and when added together, +3 is obtained.

These numbers are +11 and -8.

$(h + 11) (h-8) = 0$

We have two roots:

$h = -11\\h = 8$

We choose the positive value.

Thus, the base of the triangle is: $b = 6 + 2 (8) = 22$

Answer:

The base of the triangle is 22 units.

5 0

4 years ago

Read 2 more answers

HELP ASAP ILL GIVE BRAINLIST

musickatia [10]

Answer:

TRUE If substituting the test point produces a false solution, we shade on the opposite side of the line.

FALSE Elimination will give you an exact answer to a system of equations.

Step-by-step explanation:

Weird, I thought I already answer this xD

8 0

4 years ago