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tensa zangetsu [6.8K]

3 years ago

8

Write about it how can base-ten blocks be used to divide by a two-digit divisor

1 answer:

gladu [14]3 years ago

4 0

<span>Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (such as 18 = 10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.</span>

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What are the solutions of x² + 6x - 6 = 10?

Likurg_2 [28]

Answer: x=- 8 or x=2

Step-by-step explanation:

1. To solve this problem you can applly the quadratic formula, which is shown below:

$x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}$

2. The quadratic equation is:

$x^{2}+6x-6-10=0\\x^{2}+6x-16=0$

3. Then:

a=1

b=6

c=-16

4. Therefore, when you substitute these values into the quadratic formula, you obtain the following result:

$x=\frac{6+/-\sqrt{6^{2}-4(1)(-16)}}{2(1)}$

$x_1=-8\\x_2=2$

4 0

3 years ago

Read 2 more answers

Solve y=15(9860)+6997 step by step please!! I'm Stupid :(

puteri [66]

I would probably distribute 15 with the parentheses 15x 9860 which is 147,900 then you would add 6997+147,900
Y= 154187

3 0

3 years ago

Read 2 more answers

Can someone help me I have two more other questions they are 15 points each I just posted them right now! Thanks so much

nlexa [21]

Answer:

$10 coins: 21

$20 coins: 24

Step-by-step explanation:

heyy me again

So we can create 2 equations where

x = number of $10 coins

y = number of $20 coins:

x + y = 45

10x + 20y = 690

we can move equation 1 around so that we can get a value of x

x = 45 - y

now we can substitute x into the second equation

10(45 - y) + 20y = 690

450 - 10y + 20y = 690

10y = 240

y = 24

Now plug in y back into the first equation

x = 45 - y

x = 45 - 24

x = 21

8 0

3 years ago

How to find all possible functions with the given derivative ? If

Gre4nikov [31]

Answer:

a) $y = -\frac{1}{7}\cdot \cos 7\cdot t + C$ , b) $y = -\frac{1}{7}\cdot \cos 7\cdot t + 7\cdot \sin \left(\frac{t}{7}\right) + C$ .

Step-by-step explanation:

a) The antiderivative of $y' = \sin 7\cdot t$ is:

$y = -\frac{1}{7}\cdot \cos 7\cdot t + C$

b) The antiderivative of $y' = \sin 7\cdot t + \cos \left(\frac{t}{7}\right)$ is:

$y = -\frac{1}{7}\cdot \cos 7\cdot t + 7\cdot \sin \left(\frac{t}{7}\right) + C$

5 0

3 years ago

Over the weekend Koko spent 2 hours on an assignment and she spent equal amounts

alex41 [277]

She spent four hours. because a weekend is two days. Saturday and sunday. 2X2=4

5 0

3 years ago