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4 years ago

What is a equivalent expression for 3y+y+4+y

Mathematics

1 answer:

fenix001 [56]4 years ago

7 0

Answer:

5y+4

we can write it like:

3y+y+y+4

And sum of 3y+y+y is 5y

So answer is 5y+4

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Amy has 2$, Jack has 3 times as much as Amy. Catherine has twice as much as Jack. How much does Catherine have?

worty [1.4K]

Catherine has 12.

2 times 3 is 6. 6 times 2 is 12. Final answer is 12.

4 0

3 years ago

Read 2 more answers

Please zoom in before you start solving because there are tricks in here. What is the answer?

blondinia [14]

45 ÷ 3 = 15
21 ÷ 3 = 7
12 ÷ 3 = 4

(4 + 15) x 7 = 133

OR if you’re using bedmas/pedmas

4 + (15 x 7) = 109

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4 years ago

Start with five blocks in the first group. In the second group, add five more blocks than the first group for a total of 10 bloc

slava [35]

The answer is .......................50

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3 years ago

Help please will mark brainless 25 points due today

harkovskaia [24]

here's the solution,

we know that, sum of measures of each interior angle of a triangle = 180°

Figure 1.

=》

$40 + 32 + 9x + 9 = 180$

=》

$81 + 9x = 180$

=》

$9x = 180 - 81$

=》

$x = \frac{99}{9}$

=》

$x = 11$

Figure 2. 

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$42 + 63 + 4x + 15 = 180$

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$120 + 4x = 180$

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$4x = 180 - 120$

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$4x = 60$

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$x = \frac{60}{4}$

=》

$x = 15$

Figure 3.

=》

$45 + 45 + 3x - 21 = 180$

=》

$3x + 69 = 180$

=》

$3x = 180 - 69$

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$3x = 111$

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$x = \frac{111}{3}$

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$x = 37$

8 0

3 years ago

Read 2 more answers

Please help need answer!

never [62]

Answer: About 513 feet

A more accurate value is roughly 512.575960394824

==============================================================

Explanation:

With many trig problems, a diagram should help steer you in the right direction. See below.

The red angle is the angle of depression. It's formed by starting off looking straight horizontal, then we look down 26 degrees. The blue angle adds to the red angle to get 90, so we can see that 26+64 = 90. Or you could say 90-26 = 64.

The goal is to find the value of x, which is the length from B (the lighthouse base) to point C (the ship's location).

The lighthouse is 250 ft tall, meaning AB = 250

We'll use angle BAC, or angle A for short, as the reference angle. This is the blue angle in the diagram.

We have a known adjacent side (AB = 250) and an unknown opposite side (BC = x). We use a tangent ratio to tie these sides together with the reference angle in question. This way we can solve for x.

-------------------

tan(angle) = opposite/adjacent

tan(A) = BC/AB

tan(64) = x/250

250*tan(64) = x

x = 250*tan(64)

x = 512.575960394824

x = 513

The distance from B to C is roughly 513 feet.

I'm rounding to the nearest whole number because the other values given to you are whole numbers.

7 0

3 years ago