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Tomtit [17]
3 years ago
13

Follow these steps using the algebra tiles to solve the equation -5x + (-2) = -2x + 4

Mathematics
2 answers:
vova2212 [387]3 years ago
4 0

Answer:

x=-2

Step-by-step explanation:

Kobotan [32]3 years ago
3 0

Answer:

x=-2

Step-by-step explanation:

−5x−2+2x=−2x+4+2x

−3x−2=4

Step 2: Add 2 to both sides.

−3x−2+2=4+2

−3x=6

Step 3: Divide both sides by -3.

−3x

−3

=

6

−3

x=−2

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A physiological psychologist has performed an experiment to determine if a particular drug, smartozine, affects maze learning in
Elis [28]

Answer:

The critical value of F for this situation is 2.975.

Step-by-step explanation:

A test is being performed to determine if a particular drug, smartozine, affects maze learning in rats.

The groups are divided as follows:

  • Three groups of 8 rats each are injected with one of three different doses of smartozine.
  • The fourth group of 6 rats is injected with a saline solution as a control.

So, there were in total <em>k</em> = 4 groups with <em>n</em> = 30 rats.

The significance level of the test is, <em>α</em> = 0.05.

Compute the critical value of <em>F</em> as follows:

F_{\alpha, (k-1, n-k)}=F_{0.05, (4-1, 30-4)}=F_{0.05, (3,26)}=2.975

*Use the <em>F</em>-table.

Thus, the critical value of F for this situation is 2.975.

5 0
3 years ago
A business has $10,000 in its bank account. In order to build an addition onto its office, it takes out a loan for $30,000 and d
ser-zykov [4K]

Answer:

The new account balance is $40000

Step-by-step explanation:

<em>The number line is not given. However, the question can be solved without it.</em>

Given

Balance = \$10000

Loan = \$30000

Required

Determine the new balance

New\ Balance = Initial\ Balance + Loan\ Amount

New\ Balance = \$10000 + \$30000

New\ Balance = \$40000

Hence:

<em>The new account balance is $40000</em>

7 0
3 years ago
A sports store sells three different packs of tennis balls. Brand A costs $2.50 for two balls, brand B sells three balls for $3.
meriva

Answer:

Step-by-step explanation:

sports store sells three different packs of tennis balls. Brand A costs $2.50 for two balls, brand B sells three balls for $3.90, and brand C has a sale of four balls for $5.12. Which inequality about the unit price per ball is correct

Brand A:

$2.50 for 2

Brand B :

$3.90 for 3

Brand C:

$5.12 for 4

We calculate the unit price :

Brand A:

$2.50 / 2 = $1.25

Brand B:

$3.90 / 3 = $1.30

Brand C:

$5.12 / 4 = $1.2

4 0
3 years ago
I need help on number 5 a&amp;b plz
ollegr [7]
A: Distance between the Sycamore cabin to the Oak cabin is 30 yards. 
B: If she walks to the Mess Hall first she'll be 20 yards closer to the Elm cabin.
5 0
3 years ago
A savings bank invests $58,800 in municipal bonds and earns 12% per year on the investment. How much money is earned per year?
seraphim [82]
To find the answer we simply have to find 12% of 58,800. So to do that, we can multiply it by .12

58,800 • .12 = 7,056

So $7,056 is earned per year
5 0
4 years ago
Read 2 more answers
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