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LiRa [457]
3 years ago
11

A local animal shelter has 27 dogs and 23 cats. What percent of the animals are dogs?

Mathematics
1 answer:
SVEN [57.7K]3 years ago
6 0

Answer:

54%

Step-by-step explanation:

total  animals=27+23=50

dogs=\frac{27}{50} \times100=54

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The amount of a radioactive isotope decays in half every year. The amount of the isotope can be modeled by f(x) = 346(one half)x
Alecsey [184]

9514 1404 393

Answer:

  f(1) = 173 = the amount remaining after 1 year

Step-by-step explanation:

The function definition tells you f(x) is the amount of the isotope remaining after x years. Then ...

  f(1) = 173 = the amount remaining after 1 year

__

(no units are given, so we don't know if that is 173 nanograms, or 173 truck loads)

6 0
3 years ago
Two supplementary angles measure (7x + 11) and (14x + 1)º. What is
ArbitrLikvidat [17]

Answer:

67 degrees (Answer 2)

Step-by-step explanation:

These two angles must sum up to 180 degreess because they are supplementary.  Then:

7x + 11 + 14x + 1 = 180, or

21x + 12 = 180, or

21x = 168

Solving for x, we divide both sides by 21.  This results in x = 8.

The measure of the smaller angle is 7x + 11, which here is 7(8) + 11 = 67 degrees (Answer 2).

3 0
3 years ago
.Given the function f(x)=(3x+4)-(2-x) evaluate for f=5
asambeis [7]

Answer:

22

Step-by-step explanation:

f(x)=(3x+4)-(2-x)

Let x =5

f(5)=(3*5+4)-(2-5)

     Do the parentheses first

    = (15+4) - (2-5)

     = 19-(-3)

     = 19+3

    = 22

8 0
3 years ago
Read 2 more answers
7x²x + 3x3 – 2x²(x² + 2x - 1)​
Bad White [126]

Answer:

− 2 x^ 4  + 6 x^ 3  +  2 x^ 2

Step-by-step explanation:

3 0
3 years ago
Complete the two-column proof by providing a reason for each of the five statements. Given: Rectangle R U T S Prove: ∠ U S R = ∠
Fantom [35]

Answer:

The two column proof can be presented as follows;

Statement                 {}                              Reason

1. RUST is a rectangle              {}              Given

2. RU = ST ; UT = RS             {}                  Definition of a rectangle

3. ∠STU and ∠SRU are right angles  {}    Definition of a rectangle

4. ΔURS ≅ ΔSTU                  {}                   By SAS rule of congruency

5. ∠USR = ∠SUT                 {}                     By CPCTC            

Step-by-step explanation:

Given that the side RU, the angle ∠SRU and the side RS of triangle ΔURS are congruent to the side ST the angle ∠STU and the side UT of triangle ΔSTU, then ΔURS is congruent to ΔSTU, by the Side-Angle-Side (SAS) rule of congruency

Therefore, we have that ∠USR ≅ ∠SUT and therefore, it can be shown that ∠USR = ∠SUT using the Congruent Parts of Congruent Triangle are Congruent (CPCTC) postulate.

8 0
3 years ago
Read 2 more answers
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