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2 years ago

Solve 1.25x + 1.50y = 28.25.

Mathematics

1 answer:

fiasKO [112]2 years ago

4 0

To find the x-intercept, substitute in

for

and solve for

. To find the y-intercept, substitute in

for

and solve for

x-intercept(s):

(

22.6

)

(

22.6

)

y-intercept(s):

(

18.8

)

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What is 3 In3-In9 expressed as a single natural logarithim

Alexandra [31]

$3 \ln 3 - \ln 9 = 3 \ln 3 - \ln 3 ^2 = 3 \ln 3 - 2 \ln 3 = \ln 3$

Answer: $\ln 3$

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2 years ago

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What is another way this expression can be written 0.7×0.4

KiRa [710]

Answer:

7/10*4/10

Step-by-step explanation:

7/10 and 4/10 are both just the fraction forms of the decimal so it should work

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An arithmetic sequence is defined by the recursive formula t1 = 11, tn = tn - 1 - 13, where n ∈N and n > 1. Which of these is

galben [10]

coolio

$t_1=11$

$t_n=t_{n-1}-13$

so each term is ound by subtracting 13 from the previous term

an aritmetic sequence can be written as

$t_n=t_1+d(n-1)$ were

$t_n$ is the nth term

$t_1$ is the first term

d is common difference, which can also be found by doing $t_n-t_{n-1}=d$

n=wich term

we know that $t_1=11$ and we can find d

$t_n=t_{n-1}-13$ , $t_n-t_{n-1}=-13=d$

so te general term is $t_n=11-13(n-1)$ which can also be expanded and written as $t_n=-13n+24$

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3 years ago

Joey answered 21 out of 25 questions correctly on a quiz what percent of his answers were correct

DedPeter [7]

Answer:

84%

Step-by-step explanation:

Joey gives 21 correct answers out of 25 questions on a quiz.

We have to calculate the percent of Joey's correct answer.

Now, percentage of x out of y is given by the simple expression $\frac{x}{y} \times 100$ %.

Hence, the percentage of correct answer given by Joey is given by

$\frac{21}{25} \times 100 = 84$ %. ( Answer )

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2 years ago

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NISA [10]

Answer:21 I used math. way. it is a great app

you do 5-12= -7x-3=21 . in the calculator you don't need the (-s)

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