2 years ago

Use the algebra tiles to help you solve the equation 2x-3+7.The solution is______.

Mathematics

2 answers:

zimovet [89]2 years ago

7 0

Answer:

2 (+2)

Step-by-step explanation:

Oksi-84 [34.3K]2 years ago

5 0

Answer:

2 (+2)

Step-by-step explanation:

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Solve this formula for the velocity for (d)<br><br> Show your work

Vinvika [58]

Answer:

d = vt

Step-by-step explanation:

Step 1: Write equation

v = d/t

Step 2: Multiply both sides by t

vt = d

Step 3: Rewrite

d = vt

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2 years ago

A combined total of $46,000 is invested in two bonds that pay 4% and

valkas [14]

Answer: 4%-16000 and 9.5%-30000

Why:

1) x+y=46000

x=46000-y

2) 4%x+9,5%y=3490;

4x + 9.5y=349000; so 4*(46000-y)+9.5y=349000;

5.5y=165000

y=30000

x=46000-30000=16000

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3 years ago

Solve for x: 3x + 2x + 7 = 32

Leni [432]

Answer:

The answer is x = 5

Step-by-step explanation:

I added similar elements, then I subtracted 7 from both sides, next I divided by 5 both sides, and lastly I got x = 5 as my answer.

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2 years ago

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How do you write 158% as a fraction, mixed number, or whole number in simplest form?

blagie [28]

1 29/50 is the simplest form of 158%

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2 years ago

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Determine the projection of w onto u.

irina [24]

Answer:

A.6.2i-4.2 j

Step-by-step explanation:

We are given that

$u=9i-6j$

$v=-3i-2j$

$w=19i+15j$

We have to find the projection of w on to u.

The project of vector a on b

= $\frac{a\cdot b}{\mid b\mid^2}b$

$w.u=(19i+15j)\cdot (9i-6j)=171-90=81$

$\mid u\mid=\sqrt{x^2+y^2}=\sqrt{9^2+(-6)^2}=\sqrt{117}$

Using the formula

The projection of w on to u

$=\frac{u\cdot w}{\mid u\mid^2}(u)=\frac{81}{117}(9i-6j)$

The projection of w on to u=6.2i-4.2j

Hence, option A is true.

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3 years ago

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